Nylon Gear Set for Electric Bikes 36 Teeth 3pcs with Reliable Bearings

Material:The gear is constructed with a high-quality iron cover and nylon material. It allows for smoother and more efficient, a better riding experience for users. Material:Nylon+Iron Cover. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.