Gearbox shift drum for Active mopeds. The shift drum sets the gear shifting sequence by moving the forks along its grooves.
Replace it if the grooves are worn, shifts are imprecise, or gears pop out. Check the forks and the detent at the same time. If you are not sure of the cause of the fault, diagnose the assembly first so as not to replace anything unnecessarily.
Country of origin: China.
