Dirt Bike

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

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2005 - 2006 KTM 250 SX2006 KTM 250 SXS

Kit contains crankshaft, main bearing/seals and complete gasket set for complete installationFor Models: 2007 - 2008 Honda CRF 450R

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

Ready-to-install, direct bolt-on cylinders require no re-plating and lookvirtually 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...

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

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...

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long...

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...

If you are looking for every ounce of power to squeeze out of your bike but don’t want to spend a fortune, look no further. The SA-4 full system delivers performance that is unmatched for the price, with huge horsepower and torque gains across the board...