One Way Bearing Starter Sprag Clutch Overrunning Clutch Beads for motorcycle models compatible with GSXR600 X, GSXR750 K7, and GSXR1000 Z. This component is designed to engage the starter motor with the engine during startup and disengage once the engine is running. Constructed with hardened and ground rollers for improved durability. Suitable for use on specific model years of sport motorcycles requiring this type of starter clutch mechanism. Intended as a direct replacement part for the designated applications. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.