Dirt Bike

All pistons are heat treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity cast aluminum alloy (not...

All pistons are heat treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity cast aluminum alloy (not...

4165-2IN and 4166-2E when used as a set provide increased mid-top torque and horsepower. Produces more power than the OE cams from 6000 rpm and up with a slight loss at lower rpm. Produces more power than the stage 1 set from 8000 rpm and up.

2187-2IN and 2188-2E when used as a set provide increased mid-top torque and horsepower. Produces more power than the OE cams from 5000 rpm and up with no loss at lower rpm. Produces more power than the stage 1 set from 7000 rpm and up.

Kit contains stroker crankshaft, main bearing/seals and complete gasket set for complete installation+2mm strokeMakes 103.5cc*Must machine cylinder headFor Models:2002 - 2014 Yamaha YZ 85

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2003 - 2004 Honda CR 85R2003 - 2004 Honda CR 85RB

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2002 - 2014 Yamaha YZ 85

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2004 Honda CR 125R

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 1991 - 1997 Kawasaki KX 80

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 1998 - 2005 Kawasaki KX 1002003 Suzuki RM 100

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.