Motorcycle Engine Starter Clutch Gear Kit Overrunning Twin Sprocket One-Way Bearing For UU125cc UY125cc UU UY 125 UU125 This starter clutch gear kit is designed for compatibility with UU125cc and UY125cc motorcycle models.It includes an overrunning clutch mechanism with a twin sprocket and one-way bearing, engagement between the starter motor and engine.The kit facilitates smooth power transmission during startup and disengages automatically once the engine runs.Components are engineered to match specifications for proper fit and function.This assembly supports efficient of the starting system and is intended as a direct replacement for worn or damaged parts. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.