Engranajes planetarios de nailon para bicicletas eléctricas 47 5x13 5 mm con rodamientos 3 piezas

It allows for smoother and more efficient, a better riding experience for users. Material:The gear is constructed with a high-quality iron cover and nylon material. Material:Nylon+Iron Cover. It is tailored to enhance the performance of motors, making it for e-bike parts.

eBay