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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
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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
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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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Bully Clutch Driver Snap Ring and Retaining Screw Kit
Regular price $3.93 USDRegular priceSale price $3.93 USD -
MDC444 G/L Jr. Weight Lever for Junior Kart Clutch Tuning
Regular price $3.93 USDRegular priceSale price $3.93 USD -
10-32x1/2" TORX BHCS Viper Clutch Drive Plate Screw for 4-Disc Clutches
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Viper Racing 10-32x3/8" TORX BHCS Clutch Drive Plate Screw - Standard Length - 4-Cycle
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Extended 7/8" Viper Clutch Lever Support Screw for One-Disk Setups
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Multi-Use 10-32x3/4" Viper Clutch Spring Adjustment Bolt
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Versatile Viper Clutch Weight Lever Screw for Multi-Use Applications
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Viper Inner Thrust Washer for Clutch Stability
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Bully Clutches BCOTW11 Outer Thrust Washer - 11-Tooth Sprocket - 4-Cycle Racing
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Purple Box Master Link for XT2201-120 Maxx-T Chain
Regular price $3.93 USDRegular priceSale price $3.93 USD -
OEM-Style Viper Outer Clutch Washer .030" Thick Plain Finish
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Black Oxide Viper Outer Clutch Washer .035" Thick for Large Sprockets
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Thicker .050" Black Oxide Viper Outer Clutch Washer for Heavy-Duty Use
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Red Box Master Link for XT2001 Chains (Non-Reaper)
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Thin Keystock 3/16" x 1/4" for Shallow Keyway Kart Axles
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Hilliard Inferno 3/4" Clutch Hub Spacer for Precise Alignment
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Silver .010" Bully Clutch Shim for Accurate Clutch Tuning
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Heavy-Duty Big Pin Viper Clutch Lever Dowel for Enhanced Durability
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Bully 6-Spring Clutch Lever Dowel Pin for Stable Fit
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Reliable Viper Clutch Lever Dowel Pin for Secure Assembly
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Precision Viper Clutch Key for Optimal Drive Performance
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Durable Viper Clutch Spring Retainer for Reliable Kart Performance
Regular price $3.93 USDRegular priceSale price $3.93 USD -
Vortex Black Spring for Firm Kart Clutch Response
Regular price $3.74 USDRegular priceSale price $3.74 USD -
Hilliard Inferno Green Clutch Spring for Optimal Tension
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Hilliard Inferno Black Clutch Spring for Enhanced Engagement
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Hilliard Inferno White Clutch Spring - 2300 RPM Engagement - LO206 / 4-Cycle
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Hilliard Inferno Orange Clutch Spring for Responsive Shifts
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Hilliard Inferno Red Clutch Spring for High-Performance Grip
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Hilliard Inferno Yellow Clutch Spring for Quick Acceleration
Regular price $3.68 USDRegular priceSale price $3.68 USD -
Complete Axle Bearing Cassette Bolt Kit with Bolts, Lock Washers, and Washers
Regular price $3.60 USDRegular priceSale price $3.60 USD -
Hilliard Inferno Bully Clutch Hub Spacer for Conversion Kits
Regular price $3.58 USDRegular priceSale price $3.58 USD -
Hilliard Inferno FIRE Inner Keyed Washer for Secure Clutch Assembly
Regular price $3.58 USDRegular priceSale price $3.58 USD -
Viper VCB-BL Blue Clutch Mounting Bolt Kit - 5/16-24 x 3/4" - Go Kart Racing
Regular price $3.55 USDRegular priceSale price $3.55 USD -
Bully Clutches 6-Spring Black Clutch Spring - .085" Wire - Adult & Junior Sprint
Regular price $3.48 USDRegular priceSale price $3.48 USD -
Medium .090" Red Bully Clutch Spring for Enhanced Grip
Regular price $3.48 USDRegular priceSale price $3.48 USD -
Stiff .100" Blue Bully Clutch Spring for High-Performance
Regular price $3.48 USDRegular priceSale price $3.48 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.