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- Best Picks by Swift Karting: The Essential Pit Tools
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Brake Parts (M.C.P.)
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Chain
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196cc Clone Engine & Parts
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212cc Clone / Predator Engine & Parts
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Air Filters & Pre Filters (2-7/16")
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Briggs LO206 Engines & Parts (LO206)
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- Track Wear, Kart Life Apparel
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SMC Vortex Two-Disk Clutch REV3 Style for Superior Kart Engagement
Regular price $435.05 USDRegular priceSale price $435.05 USD -
SMC Bully Two Disk 10T #35 Sprocket Conversion Kit - REV3 Tri-Hex - Outlaw/Modified Racing
Regular price $90.93 USDRegular priceSale price $90.93 USD -
SMC REV3 11T #35 Sprocket Conversion Kit - For 2-Disc Viper/Gator Clutches - Kart Racing
Regular price $90.93 USDRegular priceSale price $90.93 USD -
SMC 10T #35 Sprocket Conversion Kit for Viper Bully Three Disk Clutches
Regular price $89.03 USDRegular priceSale price $89.03 USD -
SMC 9T #35 Sprocket Conversion Kit - Outboard Mount for Bully & Viper Clutches
Regular price $82.94 USDRegular priceSale price $82.94 USD -
Two-Disk Twelve-Slot REV3 Drum for Precision Kart Clutches
Regular price $51.15 USDRegular priceSale price $51.15 USD -
Three-Disk REV3 Drum for Maximum Kart Clutch Power
Regular price $51.15 USDRegular priceSale price $51.15 USD -
Two-Disk REV3 Drum for Enhanced Kart Clutch Capacity
Regular price $48.87 USDRegular priceSale price $48.87 USD -
Aftermarket #35 11-Tooth Driver for SMC/Buller/Premier Clutches
Regular price $33.36 USDRegular priceSale price $33.36 USD -
SMC 10t #35 REV3 Sprocket for Precision Kart Drivetrain Tuning
Regular price $31.54 USDRegular priceSale price $31.54 USD -
High-Performance Aftermarket #35 Clutch Driver for SMC, Buller, and Premier Karts - Specify Tooth Count
Regular price $24.70 USDRegular priceSale price $24.70 USD -
SMC #3623 Backing Plate for Robust Kart Clutch Support
Regular price $19.89 USDRegular priceSale price $19.89 USD -
Bearing Race Kit for BA and REV3 Snout Replacements in Karts
Regular price $19.89 USDRegular priceSale price $19.89 USD -
SMC #3622 Floater for Smooth Clutch Operation in Karts
Regular price $18.19 USDRegular priceSale price $18.19 USD -
Precision Inboard Spacer for 12T #35 and Larger Kart Sprockets
Regular price $4.26 USDRegular priceSale price $4.26 USD -
Universal Inner Spacer for REV3 Kart Sprockets
Regular price $4.26 USDRegular priceSale price $4.26 USDSold out -
Vortex Gold Spring for Premium Kart Clutch Adjustability
Regular price $3.98 USDRegular priceSale price $3.98 USD -
Vortex Black Spring for Firm Kart Clutch Response
Regular price $3.74 USDRegular priceSale price $3.74 USD -
Vortex Silver Spring for Tunable Kart Clutch Tension
Regular price $3.40 USDRegular priceSale price $3.40 USD -
Thin Inner Spacer SMC-4211 - .750" ID .937" OD .050" Thick for Kart Clutches
Regular price $1.55 USDRegular priceSale price $1.55 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.