CG125 motorcycle shift shaft, shaft body size, shift fork interface and CG125 gearbox fully match, directly replace the original shift shaft, compatible with shift rod, fork components, no need to change the transmission structure; Using high quality alloy steel processing + surface rust treatment, shaft body strength is high, not easy to deformation, can withstand the control force of shifting stably, long-term use without slack; It is the core replacement component of gearbox shift fault (such as unsmooth shift and out of gear), suitable for the maintenance scenario of gearbox control 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.