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All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

Stage 1: Dual cam engine.Intake and exhaust cams sold separately.Drastically improves midrange and top-end power.Comes with adjustable sprocket.Uses stock valve springs.

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installation.Kits do not include water pump seal

All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

All new assembly sold complete with Hot Rods connecting rodFactory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performanceReady for installationCrankshaft is completely rebuildable with genuine Hot Rods...

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationWhen used in 04-05 model makes true 450cc*Does not fit R or X modelsFor Models:2004 - 2009 Yamaha YFZ 450

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2004 - 2005 Honda TRX 450ER2004 - 2005 Honda TRX 450R

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 1985 - 1986 Honda ATC 250R1986 Honda TRX 250R

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2004 - 2005 Yamaha YFZ 450

Hot Rods heavy duty drop-in stroker crankshaftsNot only do these stroker cranks bring about a heightened level of performance and increased displacement, but they do so without costly case machining, custom cams chains or spacer platesUtilizes the...

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.

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...