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$949.00
RadiusX 4.0 – A high-performance, stall-preventing auto clutch is just a clutch pack swap away. RadiusX combines TorqDrive friction disk technology with...

$120.00
38M's Breather Box replaces your stock box that leaks and/or doesn't work well, or the ltr or aftermarket breathers that are just in the way. As with...

$1,449.00 $1,280.00
RadiusCX 4.0 is the complete package of auto clutch functionality, improved power delivery, and upgraded durability. RadiusCX kits include Rekluse’s...

$399.00
Rekluse TORQ Drive Clutch Pack: A high performance manual clutch is now more accessible than ever with the TorqDrive Clutch Pack. It’s as easy...

$0.00
K&S
K&S Engine Oil Seal Highlights: Direct OEM Replacements Cheaper than OEM

$37.29
Manufactured by the leading O.E.M. factory in Japan Die-cast parts are machined to O.E.M. specifications and tolerance for perfect fit Parts are a...

$0.00
Winderosa Complete Gasket Sets include all gaskets necessary to rebuild the engine and transmission. The base and head gaskets are designed for OEM bore....

$179.95 $158.36
OEM pressure are cast pieces with a very temporary life. Many racers have gone to the improved durability of a machined billet basket. Well, hereÂ’s the next level of performance and durability, the WPS machine-forged Pressure Plate by Wiseco

$368.00 $323.84
OEM inner hubs are cast pieces with a very temporary life. Many racers have gone to the improved durability of a machined billet basket. Well, hereÂ’s the...

$34.95 $30.76
PRO X Pressure Plates are precision machined from heat treated aircraft type aluminum alloy to O.E. precision standards. Sophisticated hard-anodizing...

$292.00 $256.96
Forged from lightweight aero-space grade aluminum alloy ; CNC Machining ensures each identical to the next. Weight saving relief cuts on out side of clutch...

$59.95 $56.35
Hot Rods is proud to introduce their line of precision , high quality , main bearings and seal kits, which are designed to support OEM or Hotrods crank line.

$249.00 $219.12
These clutch baskets are precision machined with today's most advanced - heat treated aircraft hardened aluminum alloy. The basket's specially designed teeth...

$29.95
In line temperature reducer increases cooling efficiency of any water cooled all terrain vehicle. The Pro Design Super Coolers Reduces cooling temperatures...
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$119.00 $107.10
    * Magnum/YBN cam chains are made to meet or exceed OEM standards. * ISO 9001 certified.

$56.95 $50.12
PRO X Inner Clutch Hubs are precision machined from heat treated aircraft type aluminum alloy to O.E. precision standards. Sophisticated hard-anodising...

$179.95 $158.36
The Hinson Racing pressure plate allows the clutch assembly to spin more true, creating less heat when disengaged. Made from T-6 alloy and Alkalized for 5...

$149.00 $131.12
Magnum Clutch kits are race proven to meet the needs of today's off road racers.

$499.00
Oversized NASCAR styled radiator for your ATV o No other radiator like it on the planet! o Maintains cooler operating temperatures under the...

$599.00
All new assembly Crankshafts sold complete with connecting rods, main bearings and inner crankshaft webs. Factory assembled and trued within .001 and ready for installation.O.E.M. Quality at an aftermarket price! (Blaster Kit Does Not Have Crank Bearings)

$528.00 $475.20
Wiseco Valve kit includes exhaust valves, intake valves , and center valves were applicable. The LTR450 and the YFZ450 come in Titanium. The 400ex, kfx400, ltz400 come in stainless steel.

$849.00
RadiusX – a high performance auto clutch is just a clutch pack swap away. RadiusX combines a TorqDrive clutch pack with our innovative EXP (auto clutch)...

$137.22
Hot Rod Connecting Rods are precision double honed to assure cylindrical accuracy of less than 0.003mm

$160.99
Hotcams Valve Spring Kit: Fits YFM660 Raptor 01-05 Required with Stage 3 Hotcam

$299.00
The Hi-FLo Oversize Radiators ensure modified motors maintain peak horsepower by increasing the efficiency of the cooling system. The Hi-Flo radiators...

$229.95 $206.95
All Kibblewhite spring kits are the no-nonsense answer to hassle-free performance. Each kit use the highest quality materials machined to precise...

$299.95 $263.96
The Hinson Racing Inner Clutch Hub is designed to help eliminate clutch chatter, spin more true, and create less heat in the clutch. All of these add up to a...

$1,099.00
The best manual clutch available, period. Core Manual TorqDrive delivers unprecedented performance, tuning and durability. TorqDrive provides more disks in...


$169.95 $149.56
The Hinson Racing clutch cover is made from T6 aluminum and the choice of many Factory Teams. This unit improves heat dissipation and is significantly...

$349.95
*Out Of Stock* Mud Buster camshafts are selected to maximize torque at low RPM and small amounts of throttle opening for low speed riding...

$369.95
  TRX400EX Displacement - 440cc Bore size - 4.00" Compression ratio - 12.5:1 Cylinder sleeving required Kit Includes: Piston,...

$1,095.00 $963.60
Hinson Slipper Clutch BTL (Black Torque Limiter) Features: Revolutionary slipper clutches used by factory race teams Precision machined...

$429.95
Magnum TRX440EX Big Bore Kit  TRX440EX Steel Bore Cylinder kit Namura 440cc Big Bore Piston Kit Namura 440cc Gasket Kit....

$155.30 $136.66
Anti-swell, alloy impregnated heavy duty cork based facings for smooth clutch take up. This allows modulation, unlike paper clutches which tend to snatch....

$259.95
400ex Big Bore Kit (All Years) Kit includeds all parts needed to turn your 400 into a fire breathing 440cc monster! Kit inlcudes a Magnum 440cc Piston...

$88.89 $80.00
The Wiseco cam chain is made from the highest quality select steel alloys that are light, yet provide maximum strength.

$129.95
Hot Cam Installation Kit Includes: degree wheel dial indicator adjustable magnetic stand three positive stops (10mm, 12mm, 14mm...
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$89.95
  7.48mm Valve Shims Includes three 7.48mm OD shims in each size from 1.20mm to 3.50 in .05mm increments 9.48mm Valve Shims...

[Contact us for a price]
The new Cylinder Works O.E.M. replacement cylinder is a standard cylinder from the makers of the Pivotworks™, Hotcams™, and Hot Rods™....

$0.00
With over 50 years of experience, JE pistons is the leader in high performance forged pistons. JE Pistons have built a reputation that the competition can...

$265.95 $218.08
Replacement pistons for your Cylinder Works Big Bore Cylinder Kits.

$763.99 $649.39
Athena Standard Bore Features: Wider water jackets nickel carbine coated cylinder Comes with: Piston, Rings, Circlips, Cylinder, and top...

$255.00
All connecting rods are O.E.M. length Proprietary blend of materials produces the best possible part Made in the U.S.A.

$239.00 $179.25
Wiseco offers forged pistons that offer better performance than OEM at a reasonable price. Extensive engineering goes into each Wiseco ATV Piston to provide...

$179.80 $161.82
Kibblewhite Kit Includes: 2 - Intake Valves 2 - Exhaust Valves 1 - Center Valve (Yamaha YFZ450 Only) Each valve is fully CNC machined to precise...

$917.00 $687.75
Wrench Rabbit Complete Rebuild Kit In A Box Features: Vertex Piston (Standard Compression, Piston, Rings, Pin, and Clips Hot Rods Heavy Duty...

$181.95 $172.85
Boyesen Super Color Water Pump Cover and Impeller Kit: Cast aluminum construction Increased coolant flow in all RPM ranges Patented nautilus...