CG125 motorcycle starting shaft, shaft body size, gear/spline structure and CG125 starting system fully match, directly replace the original starting shaft, compatible with starting plate, starting gear and other components, without changing the starting structure; Using high quality alloy steel processing + surface hardening treatment, shaft body high strength, wear resistance, can bear the instant impact force when starting, not easy to deformation or fracture; It is the core replacement component of start-up system failure (such as weak start-up and idling), suitable for minor/major repair scenarios of start-up system; The surface treatment process can resist oil corrosion and environmental corrosion, and is suitable for long-term high temperature and high humidity working environment of the engine.