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Kit contains stroker crankshaft, main bearing/seals and complete gasket set for complete installation+2mm strokeMakes 88cc*Must machine cylinder headFor Models:2006 Kawasaki KX 85

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2001 Yamaha YZ 125

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2003 - 2008 KTM 65 SX

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models:2004 - 2011 KTM 105 SX

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2005 - 2007 Honda CR 250R

2003 - 2008 Suzuki RM 250

ul.a { text-indent: 40px;}Stage 1&2 camUses stock valve springs. Intake and exhaust cams sold separatelyDesigned with Improved Throttle Response (I.T.R.) technology

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 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.

Includes crankshaft, main bearings, complete bottom end gasket set, including all seals and gaskets needed for the jobThe crank pin bearings are manufactured from the highest quality hot rolled steel. Case hardened to 58-62CThe caged needle roller...

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...