{"title":"Gear \/ Sprocket Hub","description":"\u003cp\u003eSprocket hubs that mount the rear sprocket to the kart axle. Confirm axle diameter, bolt circle, and sprocket pattern before purchase.\u003c\/p\u003e","products":[{"product_id":"1-sprocket-hub-black-aph1b","title":"Durable Black 1-Inch Sprocket Hub for Kart Racing Power Transfer","description":"\u003cp\u003eEngineered for kart enthusiasts chasing that extra edge, the black 1-inch sprocket hub transforms axle efficiency into raw speed. Its robust aluminum construction clamps firmly around 1-inch axles, preventing any wobble during high-RPM sprints down the straightaway.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined for flawless sprocket alignment, minimizing chain drag and maximizing torque transfer.\u003c\/li\u003e\n\u003cli\u003eAnodized black finish resists corrosion from trackside grime and sweat, keeping your setup looking sharp race after race.\u003c\/li\u003e\n\u003cli\u003eEasy installation with included hardware means less pit time and more laps, directly translating to better positioning against rivals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're dialing in your setup for a tight oval or a twisty road course, this hub's secure grip ensures power hits the wheels without loss. Racers report smoother acceleration out of corners, shaving precious seconds off lap times. Compatible with most 1-inch axle karts, it's a no-brainer upgrade for anyone serious about podium finishes. SKU: APH1B – stock up and feel the difference in your next heat.\u003c\/p\u003e\u003cp\u003eDon't overlook the small components; this sprocket hub is where reliability meets performance, helping you maintain momentum when it counts most. Pair it with high-quality chains for an unbeatable drive-line combo that keeps you ahead of the pack.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This sprocket hub is specifically engineered for 1-inch diameter kart axles. Please verify your axle size before purchasing to ensure a secure, wobble-free fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub come with the necessary mounting hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the hub includes the required hardware for installation, allowing you to get back on the track quickly with minimal pit time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the anodized finish benefit my kart's performance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Beyond providing a sharp look, the anodized black finish acts as a protective layer that resists corrosion from trackside grime, sweat, and moisture, ensuring the hub remains durable and functional race after race.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this hub help with chain alignment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. This hub is precision-machined to ensure flawless sprocket alignment, which is critical for minimizing chain drag and maximizing efficient torque transfer to the rear wheels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this hub be used for both oval and road course racing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub is designed to perform in both environments. Its secure clamping mechanism maintains power delivery through tight corners and high-speed straightaways, helping you maintain momentum.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-sprocket-hub-silver-aph1\"\u003ePrecision Silver 1-Inch Sprocket Hub for Seamless Kart Power\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562594595134,"sku":"APH1B","price":49.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/1sprockethubs-1-sprocket-hub-black-aph1b.jpg?v=1763112487"},{"product_id":"1-sprocket-hub-silver-aph1","title":"Precision Silver 1-Inch Sprocket Hub for Seamless Kart Power","description":"\u003cp\u003eImagine slicing through corners with unyielding drive – that's the promise of our silver 1-inch sprocket hub. Built from premium aluminum, it locks onto axles with vise-like precision, ensuring every ounce of engine power propels you forward without hesitation.\u003c\/p\u003e\u003cp\u003eKey advantages include its sleek silver anodizing, which not only enhances aesthetics but also provides superior protection against wear from intense racing conditions. Installation is straightforward, allowing quick swaps during practice sessions to fine-tune your gearing for varying track layouts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces vibration for smoother rides, helping maintain control at high velocities.\u003c\/li\u003e\n\u003cli\u003eSupports a range of sprocket sizes, giving you flexibility to experiment with ratios for optimal speed versus torque balance.\u003c\/li\u003e\n\u003cli\u003eProven to extend chain life by minimizing misalignment, saving you from costly mid-season replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor kart teams focused on consistency, this hub stands out by promoting even power distribution, which can mean the difference between leading the pack or chasing it. Integrate it into your drive-line for noticeable improvements in lap times and overall drivability. SKU: APH1 – the silver standard in racing hubs.\u003c\/p\u003e\u003cp\u003eTrack veterans swear by its reliability, noting fewer adjustments needed between races, freeing up time for strategy and driver prep.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 1-inch kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub is precision-engineered to fit standard 1-inch kart axles. Its design ensures a secure, vise-like lock to prevent slippage during high-torque racing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the silver anodized finish benefit my kart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Beyond providing a sleek, professional look, the silver anodizing acts as a protective barrier against oxidation and wear, ensuring the hub maintains its structural integrity and aesthetic appeal throughout the racing season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub to change my gear ratios?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. This hub is designed for quick swaps, allowing you to easily change sprocket sizes between practice sessions or heats to dial in your gear ratio for specific track layouts and torque requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this hub help with chain alignment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. By providing a stable and precise mounting point, this hub minimizes sprocket wobble and misalignment, which significantly reduces chain wear and helps prevent costly mid-season chain failures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub require special tools for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No special tools are required. The hub is designed for straightforward installation, making it easy for kart teams to perform quick maintenance or gearing adjustments trackside.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-sprocket-hub-black-aph1b\"\u003eDurable Black 1-Inch Sprocket Hub for Kart Racing Power Transfer\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-floating-sprocket-hub-black-pm-015-fs\"\u003eBlack 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-sprocket-hub-1-25-pm-15\"\u003ePerformance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562594660670,"sku":"APH1","price":49.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/1sprockethubs-1-sprocket-hub-silver-aph1.jpg?v=1763112488"},{"product_id":"1-1-4-floating-sprocket-hub-black-pm-015-fs","title":"Black 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive","description":"\u003cp\u003eFine-tune your drivetrain dynamics with the 1 1\/4\" FLOATING Sprocket Hub (Black), SKU PM-015-FS. The floating design permits micro-adjustments to chain tension, adapting to different sprocket sizes and track conditions for peak efficiency.\u003c\/p\u003e\u003cp\u003eThis hub's black finish not only looks sharp but also resists wear from exposure. It mounts easily to axles, providing a stable base that minimizes slippage under load— essential for maintaining speed through variable terrain.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1 1\/4-inch bore fits standard axles with precision.\u003c\/li\u003e\n\u003cli\u003eFloating mechanism allows play for custom tensioning.\u003c\/li\u003e\n\u003cli\u003eRobust construction handles high-horsepower engines reliably.\u003c\/li\u003e\n\u003cli\u003eCompatible with #35 and #40 chains for broad use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRacers leverage this hub to organize gearing choices, swapping sprockets quickly without major overhauls. The adjustability indirectly accelerates your kart by ensuring even chain wrap, reducing drag and boosting torque delivery to the rear wheels. In corners, it contributes to smoother transitions, as consistent tension prevents binding.\u003c\/p\u003e\u003cp\u003eFor endurance events, the floating feature extends component life by absorbing shocks that rigid hubs can't. It's a game-changer for teams chasing lap records, blending versatility with durability. Install one and transform how your kart responds to every throttle input, gaining fractions that add up to victories.\u003c\/p\u003e\u003cp\u003eBeyond the track, its design simplifies maintenance, keeping your pit station efficient and your focus on strategy intact.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of a \"floating\" sprocket hub compared to a standard fixed hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A floating hub allows for slight movement, which helps maintain optimal chain tension and alignment. This reduces drag, prevents chain binding during cornering, and ensures smoother power delivery to the rear wheels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with my 1 1\/4\" kart axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the PM-015-FS is precision-engineered to fit standard 1 1\/4-inch kart axles, providing a secure, stable base that minimizes slippage under high-horsepower loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub with different chain sizes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This hub is designed for broad compatibility and works effectively with both #35 and #40 chains, making it a versatile choice for various racing classes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the floating design help with maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The floating mechanism allows you to swap sprockets quickly without major drivetrain overhauls. It also helps extend the life of your chain and sprocket by absorbing shocks that would otherwise stress a rigid mounting system.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-sprocket-hub-1-25-pm-15\"\u003ePerformance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd\"\u003ePerformance Manufacturing APH125B-HD Heavy Duty Sprocket Hub - 1 1\/4\" Bore Black - Senior Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-sprocket-hub-black-new-design-as-of-02-08-2019-aph125b\"\u003ePerformance Manufacturing APH125B 1 1\/4\" Sprocket Hub - Black Billet - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562617303358,"sku":"PM-015-FS","price":72.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-1-1-4-floating-sprocket-hub-black-pm-015-fs.jpg?v=1763112914"},{"product_id":"40mm-sprocket-hub-black-pm-15-40","title":"USA-Made Black 40mm Sprocket Hub with Threaded Holes and Hardware","description":"\u003cp\u003eUnlock American craftsmanship in your kart's rear end with the Performance Manufacturing 40mm black sprocket hub. This USA-built component redefines reliability, complete with all necessary hardware for immediate deployment.\u003c\/p\u003e\u003cp\u003eStandout specifications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSix precision 1\/4-28 threaded holes: Ensure rock-solid sprocket and guard attachment, eliminating worries during high-speed runs.\u003c\/li\u003e\n\u003cli\u003eHardware kit included: Bolts and fasteners ready to go, saving you sourcing time and getting you back on track faster.\u003c\/li\u003e\n\u003cli\u003eBackside register design: Perfectly accepts USA-style guides and guards, streamlining your setup for cleaner, more efficient power paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the heat of competition, this hub's secure hold prevents chain whip and misalignment, directly feeding more power to the wheels for quicker acceleration. It's especially valuable for teams managing multiple karts, as the included parts keep everything standardized and organized in your trailer.\u003c\/p\u003e\u003cp\u003eThe black anodized finish not only looks professional but also combats rust from wet tracks or storage, extending service life. Racers note improved handling from reduced rear-end slop, allowing confident pushes into apexes. For Margay Ignite chassis owners, it pairs seamlessly with axles, enhancing overall chassis dynamics.\u003c\/p\u003e\u003cp\u003eInvest in this hub to transform chaotic pit routines into efficient workflows, focusing energy on driving rather than fixes. SKU: PM-15-40 – where quality meets the checkered flag.\u003c\/p\u003e\u003cp\u003eExperience the difference of domestic engineering tuned for karting excellence, lap after lap.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 40mm kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub is precision-engineered to fit standard 40mm kart axles. It is a popular choice for Margay Ignite chassis owners and other karts utilizing a 40mm rear axle setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the hub come with the necessary hardware for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. We include a complete hardware kit with the hub, so you have the bolts and fasteners required for immediate installation, saving you a trip to the hardware store.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the backside register design?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The backside register is designed to perfectly accept USA-style sprocket guides and guards. This ensures your sprocket and guard are perfectly centered, which helps maintain a clean power path and prevents chain misalignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I maintain the black anodized finish?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The black anodized finish is highly durable and resistant to rust. Simply wipe it down with a clean cloth after wet track sessions or before storing your kart to keep it looking professional and performing at its best.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this hub help with chain whip?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. By providing a secure, rigid hold on the sprocket, this hub minimizes movement and slop in the rear end. This stability reduces chain whip and ensures more efficient power transfer to the wheels during acceleration.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-35-40l10m-adjustable-axle-cassette-for-40mm-pm-35-40l10m\"\u003eAdjustable Metric Axle Cassette for 40mm Axles and 80mm Bearings\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-12-40-10-metric-axle-cassette-pm-12-40-10\"\u003eBlack Anodized Metric Axle Cassette for 80mm OD Bearings\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/acgs-aluminum-chain-guard-w-heat-shield-black-acgs\"\u003eACGS Aluminum Chain Guard \u0026amp; Heat Shield – Fits LO206 \u0026amp; Animal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562617336126,"sku":"PM-15-40","price":54.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-40mm-sprocket-hub-black-pm-15-40.jpg?v=1763112915"},{"product_id":"1-1-4-sprocket-hub-silver-aph125","title":"Silver 1 1\/4 Inch Sprocket Hub APH125 with Included Hardware","description":"\u003cp\u003eSilver sheen meets functionality in the 1 1\/4\" Sprocket Hub, Silver, SKU APH125. It comes complete with 1\/4-28 fine thread hardware and a 5\/16-18x1.0\" SHCS pinch bolt, ready for immediate use.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSilver aluminum for lightweight strength and cooling.\u003c\/li\u003e\n\u003cli\u003eIncluded hardware simplifies out-of-box installation.\u003c\/li\u003e\n\u003cli\u003ePinch bolt secures axle fit without slippage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis hub anchors sprockets solidly, ensuring chains engage fully for maximum torque transfer and rapid acceleration. It aids organization by bundling essentials, cutting setup time in the pits. The fine threads allow nuanced adjustments, fine-tuning tension for specific tracks.\u003c\/p\u003e\u003cp\u003eOn the circuit, its stability shines in high-speed sections, preventing wobbles that sap pace. For versatility, it pairs with various guards and chains, making your kart adaptable across events.\u003c\/p\u003e\u003cp\u003eThe silver finish not only performs but also complements custom builds aesthetically, while the hardware's quality ensures enduring performance.\u003c\/p\u003e","brand":"Apex Performance","offers":[{"title":"Default Title","offer_id":52562623201598,"sku":"APH125","price":46.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-1-1-4-sprocket-hub-silver-aph125.jpg?v=1763113056"},{"product_id":"1-1-4-sprocket-hub-black-new-design-as-of-02-08-2019-aph125b","title":"Performance Manufacturing APH125B 1 1\/4\" Sprocket Hub - Black Billet - All Classes","description":"\u003cp\u003eWhen sourcing elite go kart parts for your driveline, the Performance Manufacturing APH125B 1 1\/4\" Sprocket Hub delivers the exact tolerances required to transfer maximum horsepower from your go kart engine directly to the track. In competitive sprint and endurance racing, the driveline is the most critical path for power delivery. Any inefficiency here costs you tenths of a second per lap. This updated billet hub eliminates those inefficiencies, providing a rock-solid foundation for your gearing setup.\u003c\/p\u003e\u003ch2\u003ePrecision Machining for Your Go Kart Engine\u003c\/h2\u003e\u003cp\u003eThe APH125B sprocket hub is engineered from high-grade billet aluminum, providing a rigid mounting foundation that prevents flex under heavy acceleration. A flexing sprocket carrier leads to chain binding, parasitic drag, and lost momentum. By maintaining absolute concentricity, this hub ensures that every ounce of torque generated by your motor engine translates into forward velocity. The refined 2019 design features updated machining tolerances, guaranteeing a slip-free fit on standard 1 1\/4-inch axles.\u003c\/p\u003e\u003ch2\u003eOptimizing the Parts of Wheel and Driveline Assembly\u003c\/h2\u003e\u003cp\u003eDriveline alignment is critical in competitive karting. The APH125B acts as the vital link between your power plant and the rear axle, complementing the other parts of wheel assemblies to maintain rotational balance. Its black anodized finish isn't just for aesthetics; it provides a hardened surface that resists galling and accelerates heat dissipation during long, grueling heat races. When you are dialing in your gear ratios, the precise bolt-circle diameter allows for rapid sprocket changes in the pits, giving your team a distinct mechanical advantage.\u003c\/p\u003e\u003ch2\u003eBuilt for the Demands of Modern Motor Engine Output\u003c\/h2\u003e\u003cp\u003eAs modern karting powerplants produce more aggressive torque curves, your driveline hardware must evolve to handle the stress. The Performance Manufacturing 1 1\/4\" Sprocket Hub is built specifically to withstand the violent engagement of high-performance clutches and the sustained RPMs of elite racing. Whether you are running a high-revving two-stroke or a heavily modified four-stroke setup, this hub guarantees that your chain alignment remains dead-true from the green flag to the checkered. Upgrade your chassis today and experience the difference that true precision engineering makes on the stopwatch.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Construction:\u003c\/strong\u003e CNC-machined for zero runout and superior rotational balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 1\/4-Inch Axle Bore:\u003c\/strong\u003e Exacting tolerances ensure a secure, slip-free fit on standard racing axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Enhances heat dissipation and protects against track debris and corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power Transfer:\u003c\/strong\u003e Reduces driveline flex to maximize output from your go kart engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefined 2019 Design:\u003c\/strong\u003e Updated machining profiles eliminate common wear points and stress risers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Gear Changes:\u003c\/strong\u003e Precision-tapped mounting holes allow for lightning-fast sprocket swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Integrates seamlessly with standard split sprockets and driveline components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I ensure this hub fits my kart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The APH125B is specifically engineered for standard 1 1\/4-inch racing axles. Ensure your axle diameter matches this specification before installation to guarantee a secure, slip-free fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is a billet aluminum hub better than a standard cast hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Billet aluminum offers superior rigidity and tighter machining tolerances. This prevents the hub from flexing under heavy acceleration, which reduces chain binding and ensures more efficient power transfer from your engine to the rear wheels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I inspect my sprocket hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e You should inspect your hub during every routine maintenance interval. Check for any signs of wear on the mounting holes and ensure the set screws or clamping hardware remain tight. The black anodized finish helps resist corrosion, but keeping the hub clean of track debris will extend its lifespan.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub for both sprint and oval racing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the APH125B is designed for all classes. Its robust construction handles the high-torque demands of both sprint and oval racing environments, providing consistent alignment for your driveline.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub come with mounting hardware for the sprocket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This product is the hub itself. It features precision-tapped holes designed for standard sprocket bolts, allowing for rapid gear changes in the pits.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-floating-sprocket-hub-black-pm-015-fs\"\u003eBlack 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-sprocket-hub-1-25-pm-15\"\u003ePerformance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd\"\u003ePerformance Manufacturing APH125B-HD Heavy Duty Sprocket Hub - 1 1\/4\" Bore Black - Senior Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562625331518,"sku":"APH125B","price":46.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-1-1-4-sprocket-hub-black-new-design-as-of-02-08-2019-aph125b.jpg?v=1763113107"},{"product_id":"50mm-sprocket-hub-black-sc50-bk","title":"PMI SC50-BK 50mm Sprocket Hub - Black Anodized Aluminum with 8mm Keyway - European Metric Chassis","description":"\u003cp\u003eMaximizing power transfer on your racing go kart requires eliminating every ounce of drive-line slop and unnecessary rotating mass. The PMI SC50-BK 50mm Sprocket Hub is engineered for drivers who demand zero slip from their engine to the rear axle. Whether you are running a high-revving two-stroke or trying to maximize your briggs and stratton lo206 horsepower, this black anodized billet aluminum hub delivers the rigid, perfectly concentric foundation your chassis needs to dominate the podium.\u003c\/p\u003e\u003ch2\u003eCross-Referencing Your Parts Number for Exact Fitment\u003c\/h2\u003e\u003cp\u003eStop guessing with generic hubs. When you verify your parts number against the SC50-BK, you are guaranteeing a flawless fit for any European standard 50mm metric axle. The precision-machined 8mm keyway locks the hub dead-center, eliminating the micro-vibrations that can rob you of top-end speed. A secure sprocket means your chain alignment stays true, reducing friction and preventing catastrophic chain throws during aggressive out-of-corner acceleration.\u003c\/p\u003e\u003ch2\u003eFrom Mini Parts to Senior Classes: Universal Metric Compatibility\u003c\/h2\u003e\u003cp\u003eWhether you are upgrading mini parts for a cadet chassis or outfitting a full-size senior kart, this 50mm hub scales to your competitive needs. The generous 6mm (.250\") through-holes make rapid gear changes in the hot pits a breeze. You won't be fighting stripped bolts or misaligned pitch circles when the track conditions change and you need to drop two teeth before the final.\u003c\/p\u003e\u003ch2\u003eClearing Chassis Components and Managing Heat\u003c\/h2\u003e\u003cp\u003eClearance is always a battle on a tightly packed kart. The compact, lightweight profile of the PMI SC50-BK ensures you have ample room around your bearing cassettes and water pump pulleys. Furthermore, as high-performance engine parts exhaust hot gases and radiate heat, the premium black anodized finish of this hub resists thermal degradation and corrosion from harsh track chemicals, chain lube, and debris.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Grade Billet Aluminum:\u003c\/strong\u003e CNC-machined for absolute concentricity, reducing rotational runout and chain wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuropean 50mm Standard:\u003c\/strong\u003e Perfectly matches metric axles used by top-tier international and domestic chassis brands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision 8mm Keyway:\u003c\/strong\u003e Locks firmly onto the axle to transmit torque instantly without keyway slop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6mm \/ .250\" Mounting Holes:\u003c\/strong\u003e Standardized through-holes for quick, hassle-free sprocket swaps in the hot pits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Defends against oxidation, chain lube degradation, and track debris while maintaining a pro look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Profile:\u003c\/strong\u003e Shaves critical rotating mass to improve acceleration and braking response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Ideal for everything from low-horsepower four-strokes to high-output shifter karts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The PMI SC50-BK is specifically engineered for European standard 50mm metric axles. Please verify your axle diameter before purchase to ensure a proper fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub include the key for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This hub features a precision-machined 8mm keyway designed to lock onto your axle. Please ensure you have the appropriate 8mm key stock for your specific axle setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the black anodized finish benefit my kart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Beyond providing a professional aesthetic, the black anodized coating acts as a protective barrier against oxidation, harsh track chemicals, and degradation from chain lubricants, ensuring a longer service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub for both sprint and oval racing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the rigid, lightweight billet aluminum construction is designed to handle the torque requirements of various classes, from high-revving two-strokes to four-stroke engines like the Briggs \u0026amp; Stratton LO206.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the 6mm through-holes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The standardized 6mm (.250\") holes are designed for rapid sprocket changes in the hot pits, allowing you to adjust your gear ratio quickly without dealing with stripped hardware or alignment issues.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77ma50-6-75-aluminum-gear-guard-set-fits-41-thru-53-teeth-pm-77ma50-6-75\"\u003eSpecialized Aluminum Gear Guard for 50mm Axle 41-53 Teeth\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/50mm-axle-lock-collar-wide-black-discontinued-limited-supply-lc50b-wide\"\u003ePMI Wide Split 50mm Axle Lock Collar - Black Anodized 8mm Keyslot - Universal Karting\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-laser-alignment-system-standard-axle-pm-091200st\"\u003ePMI Laser Alignment System for Standard Axle Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-laser-axle-adaptor-standard-pm-091020\"\u003ePMI Standard Laser Axle Adaptor in Blue Anodized Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PMI","offers":[{"title":"Default Title","offer_id":52562627559742,"sku":"SC50-BK","price":58.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-50mm-sprocket-hub-black-sc50-bk.jpg?v=1763113158"},{"product_id":"30mm-sprocket-hub-black-sc30-bk","title":"Righetti Ridolfi SC30-BK 30mm Sprocket Hub - Black Anodized - CIK\/FIA Legal","description":"\u003cp\u003eMaximizing torque transfer is the ultimate goal when sourcing premium go karts and parts, and the Righetti Ridolfi 30mm Sprocket Hub delivers unparalleled driveline rigidity for European-style axles. Engineered from high-grade billet aluminum and finished with a mil-spec black anodized coating, this hub eliminates rotational play and ensures your engine’s power is delivered directly to the tarmac. Whether you are running a traditional chain setup or experimenting with a high-torque belt drive system, maintaining absolute sprocket alignment is non-negotiable for competitive lap times.\u003c\/p\u003e\u003ch2\u003ePrecision Engineering for Shifter Kart Racing\u003c\/h2\u003e\u003cp\u003eIn the high-stress environment of shifter kart racing, driveline components are subjected to extreme torsional loads. This 30mm hub utilizes a dual keyway design (accommodating both 6mm and 8mm keys), allowing mechanics to lock the assembly securely to the axle without fear of slipping under heavy acceleration or aggressive engine braking. The 6mm (.250\") through-holes provide a flawless mating surface for metric sprockets, drastically reducing the harmonic vibrations that can lead to premature chain wear or catastrophic failure during a heat.\u003c\/p\u003e\u003ch2\u003eComplement Your Setup: From the Best Helmets to the Best Hubs\u003c\/h2\u003e\u003cp\u003eSafety and performance go hand-in-hand on the track; just as you wouldn't compromise by not wearing the best helmets available, you shouldn't compromise on your rear-end assembly. A low-friction, perfectly balanced sprocket hub keeps heat dissipation optimal and ensures consistent power delivery from the green flag to the checkered.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications \u0026amp; Track Advantages\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard European 30mm Fitment:\u003c\/strong\u003e Machined to exact tolerances for a seamless, slip-fit integration onto standard 30mm metric kart axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Keyway Architecture:\u003c\/strong\u003e Features both 6mm and 8mm keyways to accommodate diverse axle configurations and rapid trackside gearing changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMil-Spec Black Anodized Finish:\u003c\/strong\u003e Provides superior corrosion resistance and enhanced thermal dissipation during high-temperature race conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision 6mm Bolt Pattern:\u003c\/strong\u003e Ensures absolute concentricity when mounting metric sprockets, eliminating radial runout and chain binding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Billet Construction:\u003c\/strong\u003e Reduces rotating unsprung mass, allowing for faster engine spool-up and improved acceleration out of tight apexes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Clamping Force:\u003c\/strong\u003e Heavy-duty pinch bolts secure the hub tightly to the axle, preventing lateral migration even under severe cornering G-forces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Driveline Compatibility:\u003c\/strong\u003e Works flawlessly with standard roller chains or custom belt drive conversions for maximum tuning flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen you demand podium-level reliability, every component matters. Lock in your gear ratios with confidence and dominate the blacktop.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this hub fit my 40mm axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, this specific hub is precision-machined exclusively for 30mm metric kart axles. Please verify your axle diameter before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub come with the necessary keys for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The hub features a dual keyway design to accommodate both 6mm and 8mm keys. Please ensure you have the correct key size for your specific axle setup, as keys are typically sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I prevent the hub from sliding on the axle during a race?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This hub is equipped with heavy-duty pinch bolts. Ensure the axle surface is clean and free of debris, then tighten the pinch bolts evenly to the manufacturer's recommended torque specification to prevent lateral migration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this with a belt drive system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Righetti Ridolfi SC30-BK is designed for universal driveline compatibility and works effectively with both standard roller chains and custom belt drive conversions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is the black anodized finish important?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Beyond the aesthetic appeal, the mil-spec black anodized coating provides a hardened surface that resists corrosion and aids in thermal dissipation, which is critical for maintaining performance during high-heat racing conditions.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/k711n-ridolfi-righetti-40mm-rear-hub-115mm-length-black-k711n\"\u003eRighetti Ridolfi K711N 40mm Rear Wheel Hub - 115mm Length Black - Shifter \u0026amp; 206 Karts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/40mm-soft-axle-40mmaxs\"\u003eRighetti Ridolfi KD120-S6 40mm Soft Rear Axle - 3mm Wall - Margay Ignite\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/ws4mm-4mm-wheel-spacer-17mm-ws4mm\"\u003eRighetti Ridolfi Metric Front Wheel Spacer - 17mm ID x 4mm - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Righetti Ridolfi","offers":[{"title":"Default Title","offer_id":52562646008126,"sku":"SC30-BK","price":59.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-30mm-sprocket-hub-black-sc30-bk.jpg?v=1763113540"},{"product_id":"1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd","title":"Performance Manufacturing APH125B-HD Heavy Duty Sprocket Hub - 1 1\/4\" Bore Black - Senior Classes","description":"\u003cp\u003eEliminate drive-line flex and maximize power transfer to the track with the Performance Manufacturing 1 1\/4\" Heavy Duty Sprocket Hub, a mandatory upgrade when sourcing premium kart parts online. Engineered from billet aluminum and finished in a rugged black anodize, the APH125B-HD sprocket hub is built to clamp down on your 1 1\/4-inch axle with zero slip. Whether you are running a high-horsepower two-stroke or tuning your setup with a fresh lo206 carburetor kit, maintaining perfect chain alignment is critical. This heavy-duty hub utilizes a thick, robust profile that resists deformation, ensuring your sprocket stays true even after aggressive curb strikes or violent standing starts.\u003c\/p\u003e\u003ch2\u003eEssential Drive-Line Upgrades and Carburetor Parts\u003c\/h2\u003e\u003cp\u003eWhile many drivers focus on engine tuning and carburetor parts to find extra tenths, a flexing sprocket hub will rob you of that hard-earned horsepower before it ever reaches the tires. The Performance Manufacturing heavy-duty hub features a standard 6-bolt pattern, making it universally compatible with most performance sprockets and guards. Its extra-wide clamping area provides superior bite on the axle, eliminating the spin-outs and keyway shearing that plague lighter, inferior hubs in senior classes.\u003c\/p\u003e\u003ch2\u003eStop Searching for Parts for Go Karts Near Me\u003c\/h2\u003e\u003cp\u003eYou don't need to waste time looking for parts for go karts near me when you can equip your chassis with race-proven billet components. Maintaining this hub is as straightforward as wiping it down with a quality tire cleaner or degreaser between heats. The black anodized coating not only looks aggressive but provides exceptional corrosion resistance against track debris, harsh chemicals, and moisture.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Billet Construction:\u003c\/strong\u003e Machined from high-grade aluminum to prevent flexing and chain derailment under heavy loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 1\/4\" Axle Compatibility:\u003c\/strong\u003e Precision-bored to provide a flawless, tight tolerance fit on standard 1.25-inch racing axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 6-Bolt Pattern:\u003c\/strong\u003e Easily accepts standard racing sprockets and protective gear guards for quick gearing changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Delivers superior corrosion resistance and a professional, stealthy aesthetic to your drive-line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Clamping Force:\u003c\/strong\u003e Extra-thick clamping collar ensures the hub stays locked in place, protecting your keyways.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSenior Class Ready:\u003c\/strong\u003e The go-to choice for high-torque applications, heavy-use fleets, and demanding sprint or oval racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power Transfer:\u003c\/strong\u003e Keeps the sprocket perfectly aligned, ensuring every ounce of engine torque reaches the rear wheels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 1 1\/4\" kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the APH125B-HD is precision-bored to fit standard 1 1\/4-inch racing axles. Its heavy-duty clamping collar is designed to provide a secure, slip-free fit on these axles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I choose the \"Heavy Duty\" version over a standard sprocket hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The Heavy Duty (HD) version features a thicker, more robust profile designed to resist deformation. This is critical for senior classes or high-horsepower setups where aggressive curb strikes and high-torque standing starts can cause standard hubs to flex or shear keyways.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub come with the bolts to attach my sprocket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This product includes the hub itself. It utilizes a standard 6-bolt pattern, which is compatible with most industry-standard racing sprockets and protective guards you likely already have in your toolbox.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I maintain the black anodized finish?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The anodized coating is highly durable and corrosion-resistant. Simply wipe the hub down with a quality degreaser or tire cleaner between heats to remove track debris and moisture, keeping it looking professional and functioning correctly.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-floating-sprocket-hub-black-pm-015-fs\"\u003eBlack 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-sprocket-hub-1-25-pm-15\"\u003ePerformance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/acgs-aluminum-chain-guard-w-heat-shield-black-acgs\"\u003eACGS Aluminum Chain Guard \u0026amp; Heat Shield – Fits LO206 \u0026amp; Animal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562651021630,"sku":"APH125B-HD","price":51.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd.jpg?v=1763113650"},{"product_id":"30mm-american-style-sprocket-hub-jkesh30","title":"JKE 30mm American-Style Sprocket Hub - Billet Aluminum - Metric Axle","description":"\u003cp\u003ePower transfer in a competitive go kart demands absolute rigidity from the drive-line directly to the rear axle. The JKE 30mm American-Style Sprocket Hub bridges the gap between American engineering and metric precision, eliminating power loss during aggressive acceleration phases. Whether you are finalizing your engine assembly or referencing an engine diagram for optimal gear ratios, securing your sprocket with zero slippage is critical for maintaining momentum on the track.\u003c\/p\u003e\u003ch2\u003ePrecision Drive-Line Control for High-Torque Racing\u003c\/h2\u003e\u003cp\u003eWhen you are pushing the limits in the final laps, a loose sprocket can easily cost you the podium. This billet aluminum hub utilizes a threaded retention system that locks sprockets and gear guards firmly in place, withstanding the extreme torque generated by modern racing engines. While many drivers focus purely on a go kart steering wheel upgrade to improve handling, true track dominance requires a bulletproof drive-line that translates every ounce of horsepower into forward motion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded Retention System:\u003c\/strong\u003e Secures sprockets and guards using standard 1\/4-28 SAE bolts (not included) to prevent torque slippage under heavy loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Construction:\u003c\/strong\u003e Lightweight yet incredibly durable black anodized body designed specifically for the rigors of competitive racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient Pinch Bolt:\u003c\/strong\u003e Features an 8mm x 1.25 x 30mm design compatible with standard 6mm Allen keys for rapid, tool-efficient axle swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Keyway Compatibility:\u003c\/strong\u003e Accommodates both 6mm and 8mm keys, ensuring broad fitment across various metric kart axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30mm Axle Fitment:\u003c\/strong\u003e Precision-machined to slide seamlessly onto standard 30mm racing chassis setups without excessive play.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power Transfer:\u003c\/strong\u003e Reduces rotational flex in the drive-line, ensuring your engine's full potential reaches the track surface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eStreamlined Maintenance for the Pit Crew\u003c\/h2\u003e\u003cp\u003eBeyond pure speed gains, this hub streamlines your pit crew's maintenance routine. The integrated pinch bolt eliminates the need for specialized tools, making gear ratio adjustments fast and efficient during tight practice sessions. Pair this hub with your next kart steering wheel installation and chassis tuning session to experience unparalleled control and responsiveness through every corner. Do not let a compromised drive-line hold you back—install the JKE 30mm hub and feel the immediate difference in acceleration and reliability.\u003c\/p\u003e","brand":"JKE","offers":[{"title":"Default Title","offer_id":52562659737918,"sku":"JKESH30","price":52.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-30mm-american-style-sprocket-hub-jkesh30.jpg?v=1763113857"},{"product_id":"40mm-american-style-sprocket-hub-jkesh40","title":"Robust 40mm American-Style Sprocket Hub for Metric Kart Axles","description":"\u003cp\u003eStruggling with unreliable sprocket mounting on your 40mm axle? This American-style hub solves that with its innovative threaded design, ensuring everything stays put during aggressive maneuvers.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSecure fastening: 1\/4-28 threaded holes hold sprockets and guards firmly, even under high-stress conditions.\u003c\/li\u003e\n\u003cli\u003eUser-friendly pinch bolt: 8mm x1.25x30mm spec allows quick axle removal with common 6mm Allen keys, ideal for metric kart owners.\u003c\/li\u003e\n\u003cli\u003e8mm keyway: Provides a precise fit that transmits power without flex, enhancing overall drivetrain responsiveness.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCrafted for durability, this hub helps racers achieve consistent performance by minimizing vibrations and alignment issues. It's a smart choice for tracks demanding variable gearing, where stability directly impacts lap times. The aluminum construction resists heat buildup, keeping your setup cool during long sessions.\u003c\/p\u003e\u003cp\u003eIntegrating this into your kart not only speeds up power delivery but also organizes your pit area by reducing the need for frequent tweaks. Teams using it praise the ease of maintenance, which translates to more track time and fewer headaches. For competitive edges in club racing or nationals, this hub delivers. SKU: JKESH40 – the reliable choice for metric precision.\u003c\/p\u003e\u003cp\u003eUpgrade today and experience how a solid hub foundation elevates your entire racing strategy.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 40mm kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub is designed specifically for standard 40mm metric kart axles. The 8mm keyway ensures a precise, slip-free fit for optimal power transfer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hardware do I need to mount my sprocket to this hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This hub features 1\/4-28 threaded holes. We recommend using high-quality 1\/4-28 bolts to ensure your sprocket and chain guard remain securely fastened under high-stress racing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I tighten the hub onto the axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The hub utilizes an 8mm x 1.25 x 30mm pinch bolt. You can easily secure or remove the hub using a standard 6mm Allen key, making gear changes and axle maintenance quick and efficient at the track.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why choose an American-style hub for a metric axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The American-style design offers a robust, threaded mounting solution that is often more durable and easier to service than standard clip-on or friction-fit hubs, helping to minimize vibration and alignment issues.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/50mm-american-style-sprocket-hub-jkesh50\"\u003eHeavy-Duty 50mm American-Style Sprocket Hub for Kart Performance\u003c\/a\u003e\u003c\/p\u003e","brand":"J\u0026K Engineering","offers":[{"title":"Default Title","offer_id":52562659770686,"sku":"JKESH40","price":52.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-40mm-american-style-sprocket-hub-jkesh40.jpg?v=1763113859"},{"product_id":"50mm-american-style-sprocket-hub-jkesh50","title":"Heavy-Duty 50mm American-Style Sprocket Hub for Kart Performance","description":"\u003cp\u003ePower your way to victory with the 50mm American-style sprocket hub, a cornerstone for any serious kart build. Its design prioritizes strength and simplicity, making it indispensable for handling the demands of larger axles.\u003c\/p\u003e\u003cp\u003eHighlighting its core features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThreaded retention points: Accept 1\/4-28 SAE hardware to keep sprockets and guards locked, avoiding mid-race failures.\u003c\/li\u003e\n\u003cli\u003eEfficient pinch mechanism: Included 8mm x1.25x30mm bolt pairs with standard 6mm tools for rapid axle servicing on metric setups.\u003c\/li\u003e\n\u003cli\u003eRobust 8mm keyway: Delivers unyielding grip, channeling engine force directly to the wheels for explosive starts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis hub excels in environments where torque is king, like off-road karts or high-horsepower classes, by maintaining alignment under load. Racers benefit from its ability to fine-tune setups quickly, adapting to track conditions without downtime. The lightweight yet tough aluminum build helps shed unnecessary weight, contributing to faster overall lap times.\u003c\/p\u003e\u003cp\u003eOrganize your racing essentials around this reliable piece – it's built to last through seasons of abuse. For those pushing boundaries in speed, it provides the stability needed to execute perfect lines. SKU: JKESH50 – elevate your drive-line game.\u003c\/p\u003e\u003cp\u003eDon't just race; dominate with hardware that matches your ambition.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 50mm kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub is designed to fit standard 50mm kart axles. It features a robust 8mm keyway to ensure a secure fit and efficient power transfer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hardware is included with the hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The hub comes with an 8mm x 1.25 x 30mm bolt for the pinch mechanism, allowing for quick and easy installation or removal using standard 6mm tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of sprocket hardware does this hub accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This American-style hub utilizes threaded retention points designed to accept 1\/4-28 SAE hardware, ensuring your sprocket and chain guard remain securely locked during high-torque racing conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub for off-road karting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. This hub is specifically engineered for high-torque environments, including off-road karts and high-horsepower racing classes, where maintaining alignment under heavy load is critical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does this hub help with trackside maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The efficient pinch mechanism allows for rapid axle servicing, enabling you to swap sprockets or adjust your setup quickly to adapt to changing track conditions without significant downtime.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/40mm-american-style-sprocket-hub-jkesh40\"\u003eRobust 40mm American-Style Sprocket Hub for Metric Kart Axles\u003c\/a\u003e\u003c\/p\u003e","brand":"J\u0026K Engineering","offers":[{"title":"Default Title","offer_id":52562659836222,"sku":"JKESH50","price":52.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/metricsprockethubs-50mm-american-style-sprocket-hub-jkesh50.jpg?v=1763113860"},{"product_id":"pmi-sprocket-hub-1-25-pm-15","title":"Performance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes","description":"\u003cp\u003eWhen you are sourcing the best performance parts to shave tenths off your lap times, the driveline is where power meets the pavement. The Performance Manufacturing PM-15 1.25\" Sprocket Hub is engineered to eliminate rotational slop and deliver instantaneous power transfer out of the apex. Machined from high-grade billet aluminum and finished with a durable black anodized coating, this clamp-on hub provides a rock-solid foundation for your split sprockets. A rigid driveline ensures that every ounce of torque generated by your engine translates directly to acceleration, preventing the micro-vibrations that cause chain derailments or premature wear.\u003c\/p\u003e\u003ch2\u003eIntegrating with Your Engine Diagram\u003c\/h2\u003e\u003cp\u003eUnderstanding your kart's engine diagram is critical for optimizing gear ratios, and the PM-15 hub makes ratio changes in the pits incredibly efficient. The precision 1.25-inch bore slides seamlessly onto standard performance axles, locking down with exact tolerances to prevent lateral shift under heavy load. Whether you are running a high-horsepower 2-cycle or a torque-heavy 4-cycle, this hub maintains perfect alignment between the clutch and the rear sprocket, ensuring your chain tracks flawlessly at 10,000+ RPM.\u003c\/p\u003e\u003ch2\u003eClearing Space for Brakes and Parts\u003c\/h2\u003e\u003cp\u003eA cluttered rear axle can make maintenance a nightmare. The compact, low-profile footprint of the PMI standard gear hub ensures you have maximum clearance for your inboard brakes and parts. By keeping the rotational mass centralized and the profile slim, you avoid interference with brake rotors, caliper brackets, and bearing cassettes. This streamlined design not only reduces overall unsprung weight but also makes quick-change adjustments during a chaotic race day much easier.\u003c\/p\u003e\u003ch2\u003eKeeping It Clean: Engine Filters and Driveline Synergy\u003c\/h2\u003e\u003cp\u003eJust as high-flow engine filters protect your motor's internals from track dust, a precision-machined sprocket hub protects your driveline from the destructive forces of misalignment. The PM-15 is built to withstand extreme heat cycles and the brutal torque spikes of standing starts, ensuring your setup remains dialed in from the green flag to the checkered.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25-Inch Precision Bore:\u003c\/strong\u003e Matches standard performance axles for a zero-play, slip-free fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Construction:\u003c\/strong\u003e Offers an optimal strength-to-weight ratio to reduce rotational mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Protects against corrosion, track debris, and harsh racing chemicals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Clamp-On Design:\u003c\/strong\u003e Ensures rapid installation and secure clamping force under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Reduction:\u003c\/strong\u003e Minimizes harmonic distortion to keep your chain engaged over aggressive curbs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works seamlessly with standard split sprockets for quick gearing changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-Proven Durability:\u003c\/strong\u003e Engineered to survive the rigors of sprint racing and endurance events alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this hub fit my kart's axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The PM-15 is designed specifically for standard 1.25-inch performance axles. Please verify your axle diameter before purchasing to ensure a proper, slip-free fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all types of sprockets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hub features a universal design that works seamlessly with standard split sprockets, making it an excellent choice for racers who need to perform quick gearing changes in the pits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I prevent the hub from sliding on the axle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The PM-15 utilizes a high-strength clamp-on design. Ensure your axle surface is clean and free of debris, then tighten the clamping bolts evenly to the manufacturer's recommended torque specifications to lock the hub securely in place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the black anodized finish require special maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The black anodized coating is highly durable and resistant to corrosion and track chemicals. Simply wipe it down with a clean cloth after racing to remove track debris and keep your driveline looking and performing like new.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this hub for both sprint and oval racing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely. The PM-15 is engineered for race-proven durability, making it suitable for the rigors of both sprint racing and endurance events, regardless of whether you are running a 2-cycle or 4-cycle engine.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-floating-sprocket-hub-black-pm-015-fs\"\u003eBlack 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd\"\u003ePerformance Manufacturing APH125B-HD Heavy Duty Sprocket Hub - 1 1\/4\" Bore Black - Senior Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-sprocket-hub-black-new-design-as-of-02-08-2019-aph125b\"\u003ePerformance Manufacturing APH125B 1 1\/4\" Sprocket Hub - Black Billet - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Performance Manufacturing","offers":[{"title":"Default Title","offer_id":52562664653118,"sku":"PM-15","price":66.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-pmi-sprocket-hub-1-25-pm-15.jpg?v=1763113965"},{"product_id":"arc3602-extra-heavy-duty-1-25-sprocket-hub-arc3602","title":"ARC3602 Extra Heavy Duty 1.25 Inch Sprocket Hub for High HP Karts","description":"\u003cp\u003eFor beasts under the hood, the ARC3602 Extra Heavy Duty 1.25\" Sprocket Hub, SKU ARC3602, stands unmatched. Tailored for high horsepower applications, it also functions as a rotor carrier for 10-inch Jr drag brake rotors, broadening its utility.\u003c\/p\u003e\u003cp\u003eSprocket hardware isn't included— pair with our SGBKF 1\/4-28 fine thread kit for best results. Its massive build tames extreme torque, preventing failures that plague lesser hubs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1.25-inch design for robust axle compatibility.\u003c\/li\u003e\n\u003cli\u003eExtra heavy duty for tuned engines and drag use.\u003c\/li\u003e\n\u003cli\u003eVersatile as brake component in modified setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis hub channels raw power efficiently, reducing twist under acceleration to keep speeds soaring. It organizes high-performance builds by integrating seamlessly with beefy chains and guards. In drag scenarios, its carrier role ensures braking matches the thrust, stopping on a dime without drama.\u003c\/p\u003e\u003cp\u003eRacers in modified classes gain reliability, as it withstands the punishment of big boosts, leading to more passes and fewer DNFs. The strength indirectly aids speed by maintaining sprocket position through launches.\u003c\/p\u003e\u003cp\u003eWhether hauling down straights or anchoring brakes, it's engineered for the unforgiving side of karting.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the hardware included with the ARC3602 Sprocket Hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, sprocket hardware is not included. We recommend pairing this hub with our SGBKF 1\/4-28 fine thread kit for the most secure installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this hub be used for braking applications?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the ARC3602 is versatile and can function as a rotor carrier for 10-inch Jr drag brake rotors, making it an excellent choice for modified kart setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What axle size is this hub designed for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This hub is specifically engineered for 1.25-inch axles, providing a robust and reliable fit for high-horsepower racing applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I choose an \"Extra Heavy Duty\" hub over a standard one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e High-horsepower and drag-racing karts put immense torque on the drivetrain. This hub is built to resist twisting and mechanical failure, ensuring your sprocket stays aligned during aggressive launches and reducing the risk of a DNF.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc6573-arc-billet-clone-stroker-crank-175-stroke-arc6573\"\u003eARC Billet Clone Stroker Crank with +0.175 Inch Stroke for Enhanced Power\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/6272-arc-390-billet-rod-4-410-arc6272\"\u003eARC Racing GX390 Billet Connecting Rod - 4.410\" Length - Modified \/ Outlaw Class\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc6689-gx200-honda-clone-billet-flywheel-arc6689-stock-class-arc6689\"\u003eARC Billet Flywheel for GX200 Clone Stock Class Speedway Design\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc-6696-billet-predator-flywheel-hemi-only-speedway-design-arc6696\"\u003eARC Billet HEMI Predator Flywheel for Speedway Racing Excellence\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc-gx390-rod-insert-arc6391\"\u003eARC Racing GX390 Billet Rod Insert - Big Block Clone Protection - Open Class\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARC Racing","offers":[{"title":"Default Title","offer_id":52562713346366,"sku":"ARC3602","price":42.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/114sprockethubs-arc3602-extra-heavy-duty-1-25-sprocket-hub-arc3602.jpg?v=1763114691"},{"product_id":"pkt-40mm-sprocket-hub","title":"PKT 40mm Lightweight Sprocket Hub for LO206 Karts","description":"\u003cp\u003eElevate your LO206 kart's drivetrain with the PKT 40mm Lightweight Sprocket Hub. This high-quality carrier is engineered specifically for LO206 applications, delivering the durability needed for intense racing.\u003c\/p\u003e\u003cp\u003eCrafted with a six-spoke design, it offers reduced weight without sacrificing strength. PKT has enhanced the clamping hub for superior performance, now featuring precision-machined 8mm keyways. A 6mm locking set screw ensures the hub stays firmly in place on the axle, preventing movement and providing a rock-solid fit even under the high torque from LO206 motors.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight 40mm sprocket carrier\u003c\/li\u003e\n\u003cli\u003eDesigned for LO206 karts\u003c\/li\u003e\n\u003cli\u003eUpdated clamping hub for increased strength\u003c\/li\u003e\n\u003cli\u003e8mm keyways and 6mm locking set screw\u003c\/li\u003e\n\u003cli\u003eBlack anodized finish with laser engraving\u003c\/li\u003e\n\u003cli\u003eAll sprocket hardware included\u003c\/li\u003e\n\u003cli\u003eNote: Sprocket mounting holes are not threaded like typical USA-style hubs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSold individually, this hub combines style and function with its sleek black anodize and laser-etched details. Perfect for racers seeking reliable power transfer and easy installation.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cp\u003eThe reinforced design handles LO206 torque effortlessly, while the secure locking mechanism minimizes slippage for consistent performance lap after lap. Its lightweight build helps optimize your kart's handling and acceleration.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch4\u003eIs this sprocket hub made for LO206 applications?\u003c\/h4\u003e\u003cp\u003eYes, the 40mm six-spoke carriers are designed especially for LO206 karts.\u003c\/p\u003e\u003ch4\u003eWhat new features improve its strength?\u003c\/h4\u003e\u003cp\u003eUpdated clamping hub, machined 8mm keyways, and a 6mm locking set screw for secure axle fit.\u003c\/p\u003e\u003ch4\u003eDoes it come with hardware?\u003c\/h4\u003e\u003cp\u003eYes, all sprocket hardware is included.\u003c\/p\u003e\u003ch4\u003eWhat finish does it have?\u003c\/h4\u003e\u003cp\u003eBlack anodize with laser engraving.\u003c\/p\u003e\u003ch4\u003eAre the mounting holes threaded?\u003c\/h4\u003e\u003cp\u003eNo, unlike typical USA-style hubs, the sprocket mounting holes are not threaded.\u003c\/p\u003e","brand":"PKT","offers":[{"title":"Default Title","offer_id":53244454469950,"sku":"PKT40SK","price":87.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/PKT_40mm_Sprocket_Hub.webp?v=1774902173"},{"product_id":"smoker-performance-mini-sprocket-hub","title":"Smoker Performance Lightweight Gear Hub – 30mm 40mm 50mm LO206 4-Cycle","description":"\u003cp\u003eThe Mini Sprocket Hub from Smoker Performance is the machined part that securely mounts your rear sprocket to the axle on a 4-stroke kart. Newer drivers often wonder how they can change gear ratios quickly between races. This billet hub makes it simple: just unbolt one sprocket and bolt on another without removing the entire assembly.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eBrowse the full \u003ca href=\"\/collections\/smoker-performance-ultra-light-kart-racing-sprockets-gears\"\u003eSmoker Performance sprocket \u0026amp; gear lineup\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\u003cdiv style=\"margin:20px 0;padding:14px 18px;background:#f7f7f9;border-left:4px solid #444;border-radius:0 6px 6px 0;\"\u003e\n\u003ch3 style=\"margin:0 0 8px 0;\"\u003eComplete Your Setup\u003c\/h3\u003e\n\u003cp style=\"margin:0;\"\u003eRunning a Smoker Performance 1\/8\"-thick sprocket? Keep your chain tracking true with the \u003ca href=\"\/products\/smoker-chain-aligner\"\u003eSmoker Chain Aligner\u003c\/a\u003e — the companion tool made specifically for this thickness of sprocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eMachined from 7075 aluminum with a split-clamp design and keyway, the hub delivers precise fitment and reliable power transfer. Racers running 4-stroke classes choose between titanium hardware for every last gram of weight savings or steel hardware when they want maximum durability at a lower price. The full system (hub plus sprocket plus guard) weighs just 15 oz.\u003c\/p\u003e\n\u003cdiv class=\"tip-block\"\u003e\n\u003cstrong\u003eInstallation Tips:\u003c\/strong\u003e \u003cem\u003eClean the axle thoroughly and apply a light coat of anti-seize before sliding the mini sprocket hub into place. This prevents corrosion and makes future sprocket changes much easier on 30mm, 40mm or 50mm kart axles.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cp\u003eIt works with all Smoker Performance #219 and #35 ultra-light sprockets from 42T through 85T, including two-piece half-tooth #219 gears from 48.5T to 64.5T. The carbon fiber sprocket guard shown in the lifestyle image is sold separately.\u003c\/p\u003e\n\u003cp\u003eChoose your axle bore and hardware below. Whether you are just getting into karting or chasing tenths at the national level, this hub gives you fast, repeatable gearing adjustments that fit your exact axle size.\u003c\/p\u003e\n\u003cdiv class=\"tip-block\"\u003e\n\u003cstrong\u003eInstallation Tips:\u003c\/strong\u003e \u003cem\u003eTorque the pinch bolts in a criss-cross pattern using a calibrated torque wrench. Proper clamping force on the keyway prevents slippage under heavy 4-stroke torque loads while protecting your axle from damage.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBillet 7075 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAxle Bore Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30mm, 40mm, 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTitanium or Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Chain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e#219 and #35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull System Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 oz (hub + sprocket + guard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin: 28px 0; padding: 18px 20px; background: #f5fbf7; border-left: 4px solid #2a8a4a; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0 0 14px 0; color: #1a5c30; font-size: 1.02em;\"\u003e✓ Product Highlights\u003c\/p\u003e\n\u003cul style=\"list-style: none; margin: 0; padding: 0;\"\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eBillet 7075 aluminum hub mounts rear sprockets to the kart axle.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eSplit clamp design with keyway ensures secure power transfer on 4-stroke karts.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eAvailable with 30 mm, 40 mm, or 50 mm axle bore options.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eChoose titanium hardware for minimum weight or steel hardware for added durability.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eWorks with both #219 and #35 chain sprockets from Smoker Performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eCompatible with Smoker two-piece sprockets sized 42-66 tooth, half-tooth 48.5-64.5, and one-piece 67-85 tooth.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid #e8f4ec;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eFull assembly including sprocket and guard weighs 15 oz.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #2a8a4a; font-weight: bold; flex-shrink: 0; font-size: 1em;\"\u003e✓\u003c\/span\u003e\u003cspan style=\"font-size: 0.93em;\"\u003eCarbon fiber guard shown is available separately for chain protection.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-weight: bold; margin: 28px 0 8px 0;\"\u003eBuild the rest of the #219 stack\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/219-smoker-performance-ultra-light-sprocket-two-piece\"\u003e#219 two-piece in-rail gears, full tooth and 48.5T–64.5T half tooth\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/219-smoker-performance-ultra-light-sprocket-one-piece\"\u003e#219 one-piece outboard gears, 67T–85T\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/219-smoker-ultra-light-sprocket-one-piece-half-tooth\"\u003e#219 one-piece half-tooth gears for finer ratios\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/smoker-performance-gear-package\"\u003e15-gear #219 package with hub options\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/smoker-performance-carbon-fiber-sprocket-guard\"\u003eCarbon two-piece #219 gear cover\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/smoker-performance-mini-hub-sprocket-guard\"\u003eLightweight mini-hub guard with visible tooth count\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/swiftkarting.com\/products\/smoker-chain-aligner\"\u003eLaser aligner that clamps on a 1\/8\" Smoker gear with the guard on\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Smoker Performance","offers":[{"title":"30mm Titanium Hardware","offer_id":53416976154942,"sku":"SK-Smoker-Hub-30-Ti","price":103.0,"currency_code":"USD","in_stock":true},{"title":"40mm Titanium Hardware","offer_id":53416976187710,"sku":"SK-Smoker-Hub-40-Ti","price":103.0,"currency_code":"USD","in_stock":true},{"title":"50mm Titanium Hardware","offer_id":53416976220478,"sku":"SK-Smoker-Hub-50-Ti","price":103.0,"currency_code":"USD","in_stock":true},{"title":"30mm Steel Hardware","offer_id":53416976253246,"sku":"SK-Smoker-Hub-30-St","price":73.0,"currency_code":"USD","in_stock":true},{"title":"40mm Steel Hardware","offer_id":53416976286014,"sku":"SK-Smoker-Hub-40-St","price":73.0,"currency_code":"USD","in_stock":true},{"title":"50mm Steel Hardware","offer_id":53416976318782,"sku":"SK-Smoker-Hub-50-St","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/smoker-mini-sprocket-hub-three-quarter.jpg?v=1777656760"},{"product_id":"arc3600-1-25-lightweight-sprocket-hub","title":"1.25\" Lightweight Sprocket Hub ARC3600 for Kart Axles","description":"\u003cp\u003eThis ARC3600 sprocket hub delivers a strong yet lightweight solution for your kart drivetrain. CNC machined from billet 6061-T6 aluminum, it provides higher strength than typical hubs while staying light enough for stock and plate racing.\u003c\/p\u003e\u003cp\u003eThe 1.25 inch bore pairs with a 5.25 inch bolt circle featuring six 1\/4-28 threads. Compatible with both 35 pitch and 428 pitch chains, it suits SA, outlaw, and open racing styles.\u003c\/p\u003e\u003cp\u003eIncludes the pinch bolt for secure axle mounting. Sprocket mounting hardware is sold separately.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch4\u003eWhat is the bore size on this sprocket hub?\u003c\/h4\u003e\u003cp\u003eIt has a 1.25 inch (1-1\/4\") bore.\u003c\/p\u003e\u003ch4\u003eDoes this hub include sprocket mounting bolts?\u003c\/h4\u003e\u003cp\u003eNo, sprocket mounting hardware is not included.\u003c\/p\u003e\u003ch4\u003eWhich chain types does it support?\u003c\/h4\u003e\u003cp\u003eThe hub works with traditional 35 pitch chain or 428 pitch chain.\u003c\/p\u003e\u003ch4\u003eWhat racing classes is this hub suited for?\u003c\/h4\u003e\u003cp\u003eIt performs well in stock, plate, SA, outlaw, and open style kart racing.\u003c\/p\u003e","brand":"ARC","offers":[{"title":"Default Title","offer_id":54335865323838,"sku":"ARC3600","price":34.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/ARC3600_Lightweight_1.25__Sprocket_Hub.jpg?v=1787799960"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/collections\/Screenshot_2026-09-09_161031.png?v=1788984652","url":"https:\/\/swiftkarting.com\/collections\/go-kart-sprocket-hubs-drive-line.oembed","provider":"Swift Karting","version":"1.0","type":"link"}