Motorcycle Starter Clutch Gear Assy Roller Bearing Gear For YS250 This starter clutch gear assembly is designed for use with YS250 motorcycles.It includes a roller bearing gear component that engages the starter mechanism to rotate the engine during startup.The assembly fits into the engine's primary drive system and transfers from the starter motor to the crankshaft.Constructed to match specifications, it engagement and smooth.Suitable for replacement or repair of worn or damaged starter clutch components.