{"product_id":"40mm-x-50mm-rear-wheel-hub","title":"40mm x 50mm Rear Wheel Hub","description":"\u003cp\u003e\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 40mm\u003cbr\u003e\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 50mm\u003cbr\u003e\u003cstrong\u003eKeyway:\u003c\/strong\u003e 8mm\u003cbr\u003e\u003cstrong\u003eStuds:\u003c\/strong\u003e 8mm (nuts not included)\u003cbr\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e Short\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Billet Aluminum\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/p\u003e\u003cp\u003eThis billet aluminum rear wheel hub slides onto a \u003ca href=\"\/products\/pkt-40mm-axle-2-0mm-pkt40-1040-d20\"\u003e40mm kart axle\u003c\/a\u003e and bolts your wheel on with the three included 8mm studs. The \u003ca href=\"\/products\/pktak8-axle-key-for-40mm-axles-sold-each-pktak8\"\u003e8mm keyway\u003c\/a\u003e transfers torque cleanly while the \u003ca href=\"\/products\/pkt-40mm-x-35mm-rear-wheel-hub-pkt40x35rh\"\u003eshort hub design\u003c\/a\u003e cuts unsprung weight and gives extra clearance on tight sprint chassis. Perfect for LO206 sprint racing, the hub keeps wheels secure and aligned lap after lap whether you are new to karting or chasing tenths at the track.\u003c\/p\u003e\u003cp\u003eRacers like the precise fit and Birel Red Army endorsement for LO206 sprint classes. The black anodized finish resists corrosion and looks clean next to any wheel package.\u003c\/p\u003e\u003cdiv class=\"faq-q\"\u003e\u003cstrong\u003eWill this 40mm x 50mm rear wheel hub fit my LO206 sprint kart?\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv class=\"faq-a\"\u003eYes, it is designed specifically for 40mm axles with an 8mm keyway and is endorsed for LO206 sprint racing on common sprint chassis.\u003c\/div\u003e\u003cdiv class=\"faq-q\"\u003e\u003cstrong\u003eHow do I install the hub and are the wheel nuts included?\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv class=\"faq-a\"\u003eSlide the hub onto the axle, align the key, tighten the set screw, then bolt your wheel on using the pressed-in 8mm studs. Wheel nuts are not included and must be purchased separately.\u003c\/div\u003e\n\n\u003cdiv style=\"margin:28px 0;\"\u003e\n  \u003cp style=\"font-weight:700;margin:0 0 10px 0;font-size:1.02em;\"\u003e⚡ Product Highlights\u003c\/p\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:8px;\"\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eSlides onto 40mm kart axles and secures wheels with three pressed-in 8mm studs.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003e8mm keyway transfers torque from axle to wheel without slippage.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eShort hub design reduces unsprung weight on sprint chassis.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eBillet aluminum construction provides strength while keeping weight low.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eFits LO206 sprint racing classes with precise 50mm outer diameter.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eIncludes set screw hole for additional axle security.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eMade in the USA and endorsed by Birel Red Army teams.\u003c\/span\u003e\n\u003cspan style=\"background:#e8f3ff;border:1px solid #a8ccec;border-radius:20px;padding:5px 14px;font-size:0.87em;color:#1a4a7a;white-space:normal;\"\u003eNuts for the 8mm studs are not included.\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"PKT","offers":[{"title":"Default Title","offer_id":53415152779582,"sku":"PKT40X50RH","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/pkt-40mm-x-50mm-rear-wheel-hub-three-quarter.jpg?v=1777629163","url":"https:\/\/swiftkarting.com\/products\/40mm-x-50mm-rear-wheel-hub","provider":"Swift Karting","version":"1.0","type":"link"}