The shaft is part of the scooter's rear gearbox and takes part in transmitting rotation from the variator to the rear wheel. Country: China. Rear gearbox shaft complete with gear.
It should be replaced if there is play, the splines or bearing seats are worn, or there is whining or crunching while riding. Choose the shaft by the length and type given in the name; the bearings and oil seals are usually renewed along with it.
