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Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched qualityMade from the highest-quality materials using smart technology Bottom End Kit by Hot Rods®. Kit contains crankshaft, main bearing/seals and...

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 cylindersThree kit options to choose from: Standard Bore, Standard Bore Hi-Compression and Big BoreCylinder kits include matched Vertex pistons to...

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

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...

Performance Clutch Kits take the clutch pack kits one step further by including a Wiseco forged clutch basket and new rubber cushions Wiseco forged baskets are tougher and stronger than stock, and achieve higher fatigue properties than any other clutch...

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...

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...

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...

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...