Dirt Bike

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

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.

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...

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...

HOT RODS CRANKSHAFTSHot Rods crankshafts are regarded as the premier alternative to costly manufacturer cranks. But, in addition to being a cost effective alternative, Hot Rods crankshafts also bring a level of uncompromising quality, design and...

Hot Rods Bottom End kits include everything needed to complete crankshaft installation:Stroker kit crankshafts increase length of stroke as listed depending on application; in some cases cylinder head must be modified, as noted.Hot Rods main bearings and...

Hot Rods Bottom End kits include everything needed to complete crankshaft installation:Hot Rods main bearings and seals kit (Main seals included when applicable)Complete engine gasket set includes all gaskets and seals for complete engine rebuild (Does...

Hot Rods Bottom End kits include everything needed to complete crankshaft installation:Hot Rods main bearings and seals kit (Main seals included when applicable)Complete engine gasket set includes all gaskets and seals for complete engine rebuild (Does...