Small drive sprocket for Active mopeds. The small drive sprocket sits on the engine output shaft and turns the rear wheel drive chain. The number of teeth affects acceleration and top speed.
Replace it if the teeth are pointed, it whines, or the chain stretches. The sprocket is fitted together with the chain and the rear sprocket.
Available versions: 428-14 (item no. 0264), 428-15 (item no. 0265), 428-16 (item no. 0266), 428-17 (item no. 0267): choose the number of teeth you need.
