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MakeHonda®ModelCRF™ 250RYear 2008 to 2009TypeRacing Valve Spring KitsMaterialVariousDescriptionIn-0.350" Valve Lift OK 50# Seat Pressure / 145# at .350" liftEx-0.350" Valve Lift OK 50# Seat Pressure / 145# at .350" lift

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kitMOS2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include...

This cam is intended to be used as a set with the #2221-2E exhaust cam. This set will provide improved torque at all RPM, much improved peak torque and increased peak horsepower.

The first and only asymmetrical piston for 250cc and 450cc applications!100% fully machined billet pistonDyno proven power gainsExclusive custom lapped top ring and matching precision machined ring groove provide improved ring seal and break-inArmorGlide...

Stage 2 intake: Dual cam motorAdded top end over stage 1Uses stock valve springs

Stage 2 exhaust: Dual cam motorAdded top end over stage 1Uses stock valve springsInclude auto decompression mechanism

Stage 1: single-cam motor. Stage 1 has improved power at all RPMs over OEM. Performs well with stock air box lid and exhaust. Uses stock valve springs and rockers. Uses stock auto-decompression mechanism.

Stage 1: Dual cam engine.Intake and exhaust cams sold separately.No bottom-end loss with strong mid-range to top-end gains.Cam uses stock auto-decompression mechanism.Uses stock valve springs.

Stage 1 has improved power at all RPMs over OEM.Performs well with stock air box lid and exhaust.Uses stock valve springs and rockers.Uses stock auto-decompression mechanism.

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersThree kit options to choose from: Standard Bore, Standard Bore Hi-Compression and Big BoreCylinder kits include matched Vertex pistons to...

Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little thought. However, the right materials can make all the difference.We do all of the thinking, so you don't have to. Our...

Increases horsepower and throttle responseInstalls in minutesThird generation technologyNo computer needed to adjust EFIPlug-in technology (Does not interfere with stock ECU map)Integrated faceplate buttons provide easy adjustmentHighly recommended for...