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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
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- Master Cylinder Caps, Billet
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- Alfano Gauges & Accessories
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Mychron Gauges
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Axle Bearings
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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
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- 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
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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
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- Throttle Cables & Hardware
- Tillotson Carbs
- Wiseco Pistons
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- Track Wear, Kart Life Apparel
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White Spring 2470-2900 RPM for Aggressive Noram Clutch Tuning
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Blue Spring 2650-3200 RPM for Extreme Noram Kart Clutch Control
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Noram GE & Arena Purple Clutch Spring - 2900-3600 RPM - Pro Racing
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Green Spring 3200-4000 RPM for Ultimate Noram Kart Clutch Power
Regular price $7.65 USDRegular priceSale price $7.65 USD -
NAS Big Orange Spring for 3500-4400 RPM Clutch Engagement
Regular price $7.65 USDRegular priceSale price $7.65 USD -
NAS Big Brown Spring for 3850-4900 RPM High-Performance Clutch
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Nor-Am GE Series Big Red Clutch Spring - 4200-5500 RPM Engagement - 4-Cycle Racing
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Premier Titan Blue Clutch Spring - 3100 RPM - 4-Cycle Racing
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Premier Titan 3600 RPM Green Clutch Spring - Aggressive Engagement - LO206 / Clone
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Premier Titan Red Clutch Spring - 3800 RPM - Racing Class
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Titan 4000 RPM Yellow Spring for Elite Kart Clutch Tuning
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Extreme 4200 RPM Orange Spring for Titan Kart Clutches
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Noram Premier Stinger Clutch Spring - Dark Green 2100 RPM - 4-Cycle Racing
Regular price $7.65 USDRegular priceSale price $7.65 USD -
2800 RPM Blue Stinger Spring for Balanced Mid-Range Power
Regular price $7.65 USDRegular priceSale price $7.65 USD -
3100 RPM Orange Stinger Spring for High-Speed Tracks
Regular price $7.65 USDRegular priceSale price $7.65 USD -
3400 RPM Black Stinger Spring for Aggressive Acceleration
Regular price $7.65 USDRegular priceSale price $7.65 USD -
3800 RPM Yellow Stinger Spring for Top-End Focus
Regular price $7.65 USDRegular priceSale price $7.65 USD -
4200 RPM Purple Stinger Spring for Extreme High-RPM Builds
Regular price $7.65 USDRegular priceSale price $7.65 USD -
4600 RPM White Stinger Spring for Peak Performance Extremes
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Premier Stinger 5100 RPM Green Clutch Spring - Max Rev Engagement - Pro Racing
Regular price $7.65 USDRegular priceSale price $7.65 USD -
Swift AK003 Two-Peg Axle Key - 50mm OTK Axles - All Classes
Regular price $7.56 USDRegular priceSale price $7.56 USD -
Steel Axle Key Stock Set for PMI Pocket Keyed Axles
Regular price $7.46 USDRegular priceSale price $7.46 USD -
Hilliard Inferno 3/4" FIRE & FLAME Bushing Sprocket Conversion Kit
Regular price $6.96 USDRegular priceSale price $6.96 USD -
Hilliard Inferno 1/4-Inch Clutch Crank Spacer for Precise Alignment
Regular price $6.92 USDRegular priceSale price $6.92 USD -
Bully Spiral Snap Ring for 11-Tooth Sprocket Security
Regular price $6.92 USDRegular priceSale price $6.92 USD -
Reaper Drive Plate Screw - Secure Horstman Clutch Fastening
Regular price $6.92 USDRegular priceSale price $6.92 USD -
Bully Thick .030 Inner Thrust Washer Silver Polished Finish
Regular price $6.92 USDRegular priceSale price $6.92 USD -
Reliable Titan Clutch Key for 3/4" Bore WF Clutches
Regular price $6.85 USDRegular priceSale price $6.85 USD -
Reliable Stinger Cartridge Snap Ring for Secure Shaft Retention
Regular price $6.52 USDRegular priceSale price $6.52 USD -
KMC KMCTM219 Replacement Push Pin - 5/16" #219 Chain Breaker - All Classes
Regular price $6.46 USDRegular priceSale price $6.46 USD -
Hilliard Inferno Needle Bearing Clutch Mounting Kit - 1/4" Spacer & Washer - LO206 / Clone
Regular price $6.46 USDRegular priceSale price $6.46 USD -
Hilliard Inferno Clutch Mounting Kit for Bronze Bushing Clutches
Regular price $6.46 USDRegular priceSale price $6.46 USD -
Genuine OEM Stinger Clutch Key for Secure Shaft Connection
Regular price $5.97 USDRegular priceSale price $5.97 USD -
Gold .085" Wire Viper Clutch Spring for Low-Stall Applications
Regular price $5.93 USDRegular priceSale price $5.93 USD -
Viper 3.5" Clutch Spring - Silver .090" Wire - All Applications
Regular price $5.93 USDRegular priceSale price $5.93 USD -
Viper Racing Blue Anodized Clutch Spring Retainer - FCDC-SRBLU - 4-Cycle Karting
Regular price $5.93 USDRegular priceSale price $5.93 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.