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- Best Picks by Swift Karting: The Essential Pit Tools
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- Brake Bleeder Kit
- Brake Fittings & Ferrules
- Brake Fluid
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Brake Hubs
- Brake Line
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Brake Parts (M.C.P.)
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Brake Rotors
- Caliper Brackets
- Enginetics Parts
- Euro Brake Pads
- Front Wheel Brakes
- Master Cylinder Caps, Billet
- Quarter Midget Brakes
- Rotor Guards
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- Alfano Gauges & Accessories
- Hour Meter
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Mychron Gauges
- Stopwatches
- Tach Bags
- Transponder Holders
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Axle Bearings
- Axle Cassettes
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Axles & Accessories
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Bully Clutches
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Chain
- Chain Breaker Tools
- Clutch Drivers
- Clutch Friction Discs
- Clutch Mounting Bolt Kits
- Clutch Spacers
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Hilliard Clutches
- Honda GXH50 Kid Kart Clutch
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Horstman Clutch Parts
- Lock Collars
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Max-Torque Clutches
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Nor-Am Clutches
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Premier Clutches
- SMC Kart Clutches
- Sprocket Guards & Hardware
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Sprocket Hubs
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Sprockets
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Viper Clutches
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196cc Clone Engine & Parts
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212cc Clone / Predator Engine & Parts
- 224cc Clone Engine & Parts
- Air Filters & Pre Filters (1.25")
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Air Filters & Pre Filters (2-7/16")
- Big Block Clone Accessories
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Briggs LO206 Engines & Parts (LO206)
- Briggs Quarter Midget Engine and Parts
- Briggs World Formula
- Camshafts
- Carb Cover (2-7/8")
- Carb Manifolds
- Catch Tanks
- Chain Guards & Hardware
- Exhaust Header Wrap
- Exhaust Silencers & Clamps
- Flywheel Screens
- Fuel Filters
- Fuel Line
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Fuel Tanks
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Gaskets (Fel-Pro)
- Honda GXH50 Kid Kart
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Motor Mounts
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Oil & Additives
- Pulse Fittings
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Raptor (Flathead) Parts
- Spark Plug Index Washers
- Spark Plugs (2-Cycle & Honda Kid Kart)
- Throttle Cables & Hardware
- Tillotson Carbs
- Wiseco Pistons
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- Track Wear, Kart Life Apparel
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PKT 40mm Axle 3.2mm Thick for Robust Track Stability
Regular price $236.16 USDRegular priceSale price $236.16 USDSold out -
PKT 40mm x 1040mm Axle - 2.5mm Wall - LO206 / Cadet
Regular price $229.00 USDRegular priceSale price $229.00 USD -
PKT 40mm Axle 2.0mm Offset for Lightweight Track Agility
Regular price $229.00 USDRegular priceSale price $229.00 USD -
Swift 40mm Soft Axle - Black Oxide 1040mm x 3.0mm - Universal Karting
Regular price $189.19 USDRegular priceSale price $189.19 USD -
Swift 40mm Hard Axle for Precision and Power Transfer
Regular price $189.19 USDRegular priceSale price $189.19 USD -
Swift 40mm Medium Axle 1040mm for Versatile Kart Handling
Regular price $176.05 USDRegular priceSale price $176.05 USD -
Righetti Ridolfi KD120-S6 40mm Soft Rear Axle - 3mm Wall - Margay Ignite
Regular price $172.26 USDRegular priceSale price $172.26 USD -
Ridolfi Righetti 40mm Medium Axle M2 for Balanced Kart Dynamics
Regular price $172.26 USDRegular priceSale price $172.26 USD -
Ridolfi Righetti 40mm Hard Axle H2 for Rigid Track Dominance
Regular price $172.26 USDRegular priceSale price $172.26 USD -
Extended 40mm Rear Wheel Hub 95mm Length for VLR Kart Stability
Regular price $128.75 USDRegular priceSale price $128.75 USD -
VLR VLE4050 Rear Axle Bearing Cassette Housing - 40mm/50mm Compatible - LO206 & Sprint Racing
Regular price $118.37 USDRegular priceSale price $118.37 USD -
WildKart Ignite Standard Rear Wheel Hub - 40mm x 65mm - Margay Ignite Class
Regular price $82.81 USDRegular priceSale price $82.81 USD -
PMI Brand Black 40mm Axle Lock Collar OEM Quality for Karts
Regular price $16.49 USDRegular priceSale price $16.49 USD -
OEM 40mm Three-Peg Axle Key for Ridolfi Righetti Axles
Regular price $14.89 USDRegular priceSale price $14.89 USD -
PMI LC40-PMBK Aluminum Axle Lock Collar - 40mm Black Anodized - Universal Karting
Regular price $9.91 USDRegular priceSale price $9.91 USD -
Swift AK004 Three-Peg Key for 40mm and 50mm Axles
Regular price $9.91 USDRegular priceSale price $9.91 USD -
Swift AK004 Three-Peg Key for Versatile Axle Applications
Regular price $9.91 USDRegular priceSale price $9.91 USD
Collection: Drive-line Components
Complete Driveline Systems for 4-Cycle Karting
In low-horsepower racing like LO206 and Clone, driveline efficiency is free horsepower. A binding chain, a worn sprocket, or a dragging clutch can cost you tenths of a second per lap. We stock high-performance clutches, chains, gears, and hubs designed to transfer every bit of power from your crankshaft to the rear tires.
Racing Clutches
Hilliard, Stinger, & Noram. We carry the best centrifugal clutches for 4-cycle engines, plus tuning springs and weights to dial in your engagement.
Chains & Breakers
#35 & #219 Pitch. High-tensile racing chains (Gold/Space) that resist stretching. Don't forget a Chain Breaker tool!
Gears & Sprockets
Split Sprockets & Drivers. Quick-change aluminum split gears allow you to change ratios in seconds without removing the axle.
The Big Debate: #35 vs. #219 Pitch
Most LO206 and 4-cycle racers must choose a chain size. Your clutch driver must match your rear sprocket.
- #35 Chain: The standard for US club racing. It is robust, affordable, and resists derailing on bumpy tracks. (Tooth counts are smaller, e.g., 15T Driver / 58T Rear).
- #219 Chain: Common in 2-cycle and some LO206 classes. It is lighter, runs smoother, and offers finer gear ratio adjustments. (Tooth counts are higher, e.g., 19T Driver / 74T Rear).
Chain alignment must be perfect. If your rear sprocket isn't perfectly inline with the clutch driver, you will throw chains and overheat your clutch. Use a straight edge or laser alignment tool every time you move the engine.
Gear Ratio Tuning
Changing your rear sprocket size is the easiest way to tune for a specific track.
Larger Rear Sprocket: Better acceleration (Corner exit), lower top speed.
Smaller Rear Sprocket: Higher top speed (Long straights), slower acceleration.
We recommend carrying a range of split sprockets (e.g., 58-64 for #35 chain) to adapt to track conditions.