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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
- 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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Viper FCDC-SRRED Red Clutch Spring Retainer - High-Visibility - LO206 / 4-Cycle Racing
Regular price $5.93 USDRegular priceSale price $5.93 USD -
Spiral Design Viper Outer Snap Ring for 7/8" Shafts and Small Sprockets
Regular price $5.93 USDRegular priceSale price $5.93 USD -
Standard Viper Clutch Spring for Reliable Factory Performance
Regular price $5.93 USDRegular priceSale price $5.93 USD -
11-Tooth Steel Washer for Durable Noram Kart Clutch Support
Regular price $5.80 USDRegular priceSale price $5.80 USD -
Quick-Release Pin for 2025 Axle Cassettes - Essential Fastener
Regular price $5.77 USDRegular priceSale price $5.77 USD -
M6 x 40mm Sprocket Guide Bolt Kit 6 Pieces with Lock Nuts VKM6BK
Regular price $5.77 USDRegular priceSale price $5.77 USD -
Precision Spacer for SMC 11t #35 REV3 Sprocket
Regular price $5.68 USDRegular priceSale price $5.68 USD -
Hilliard Inferno 16-Piece Clutch Weight Snap Ring Kit
Regular price $5.47 USDRegular priceSale price $5.47 USD -
Hilliard Inferno FURY Steam-Treated Durable Clutch Shoe
Regular price $5.47 USDRegular priceSale price $5.47 USD -
Unbranded 1/4 x 28 Fine Thread Sprocket Guide Bolt Kit (6 Pack) - High-Tensile Steel - Universal Karting
Regular price $5.47 USDRegular priceSale price $5.47 USD -
SMC AP8/AP9 Plastic Sprocket Guard Spacer - Anti-Friction Guide - Universal Karting
Regular price $5.47 USDRegular priceSale price $5.47 USD -
Updated Bully Clutch Inner Thrust Bearing for Enhanced Reliability
Regular price $5.44 USDRegular priceSale price $5.44 USD -
PMI Key Set for 34.0-Inch Zinc Plated Axle - Four Steel Pieces
Regular price $5.40 USDRegular priceSale price $5.40 USD -
Hilliard Inferno Blaze Tunable Racing Clutch Shoe - Sold Individually
Regular price $5.37 USDRegular priceSale price $5.37 USD -
Bully Thin .015 Inner Thrust Washer for Fine Adjustments
Regular price $4.97 USDRegular priceSale price $4.97 USD -
Gold .005" Bully Clutch Shim for Precise Gap Adjustment
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Precision Cassette Alignment Pin for Kart Axles
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Reliable Bully 1" Turbo Outer Thrust Washer for Smooth Operation
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Viper Big Block Outer Thrust Washer for Clutch Stability
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Versatile VCB Clutch Mounting Kit for Standard Disk Clutches
Regular price $4.93 USDRegular priceSale price $4.93 USD -
#125 Dust Shield Snap Ring for Max-Torque Clutches
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Hilliard Inferno Drive Hub Shield Snap Ring - Bowed #156 - LO206 Racing
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Durable Aluminum Viper Clutch Mounting Washer for 3/4" Bores
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Essential Viper Clutch 7/8" Bearing Race Spacer - Soft Washer Design
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Viper Single-Disc Clutch Jet Nut 10-32 - Reduced OD & Height - 4-Cycle Racing
Regular price $4.93 USDRegular priceSale price $4.93 USD -
Stinger Sprocket-to-Drum Shim for Precise Clutch Fitment
Regular price $4.87 USDRegular priceSale price $4.87 USD -
Max-Torque #156 Clutch Driver Snap Ring - 13T+ Sprockets - Clone / Fun Kart
Regular price $4.87 USDRegular priceSale price $4.87 USD -
11-Tooth Fiber Washer for Noram Kart Clutch Assemblies
Regular price $4.63 USDRegular priceSale price $4.63 USD -
Stepped Retaining Washer for High-Performance Bully Kart Clutches
Regular price $4.54 USDRegular priceSale price $4.54 USD -
Hilliard Inferno Caged Needle Bearing for Clutch Applications
Regular price $4.44 USDRegular priceSale price $4.44 USD -
Max-Torque Standard Clutch Bushing - 7/8" ID for 12T+ Sprockets - LO206 / Clone Racing
Regular price $4.27 USDRegular priceSale price $4.27 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 -
Chamfered Outer Spacer for SMC 10t #35 REV3 Sprockets
Regular price $4.26 USDRegular priceSale price $4.26 USD -
Vortex Gold Spring for Premium Kart Clutch Adjustability
Regular price $3.98 USDRegular priceSale price $3.98 USD -
Bully Spring Adjuster Nut for Legacy 4-Spring Clutches
Regular price $3.96 USDRegular priceSale price $3.96 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.