New BPR 98mm cylinder98mm Wiseco CP or JE forged piston**Nitrite-coated piston ringsChrome wrist pinCirclipsHotrods or Wiseco HD replacement crankshaft with rodCrank bearingsComplete gasket kitMLS big bore head gasketOil seal kitValve stem sealsTalon clutch kitWater pump bearingPiston uses a pump or race gasNo case or head mods requiredWorks on all Yamaha YFZ450R FI models and years1-year warranty*