Material: Forged Steel OEM Number 1: 4TU-15590-00-00 OEM Number 2: 5AP-15517-02-00 Displacement (ml): 329/499 Model Name: TTR 125 E TT R125 TTR 125 TTR 125 R 2003-2007 External Testing Certification: ISO9001 The Motorcycle Accessories Bearing Starter Clutch Gear Assy is designed for use with TTR125E TT-R125 TTR125 TTR125R models from 2003 to 2007.Constructed from forged steel, the gear offers and resistance to wear during regular.It serves as a direct replacement part, compatibility with specifications. This clutch gear includes enhanced rollers and hardened, ground components that support engagement and consistent performance.It operates effectively under varying conditions, including temperature extremes up to 105℃.The design supports smooth whether used in off-road environments or urban riding scenarios. This replacement part is independently produced.All brand references are for compatibility demonstration only.