Rqhddpeij E Bike Motor Gear 47.5x13.5mm Planetary Gear 36 Teeth Gears with 8mm Bearings Wheel Hubs Electric Bike Nylon Gear Compatible with Bafang Motor E-Bike Parts

E Bike Motor Gear Electric Bicycle 36T Planetary Gears Wheel Hubs 47.5x13.5mm Bike Nylon Tooth Gear Compatible with Baf 500W Motor Gear E-Bike Accessories(3pcs Style A)