3EL-YT(A)-DC Driving wheel 1.competitive price 2.top quality 3.best service 3EL-YT drive wheel is driving wheel is one for ... multifunctional mechanism,put power,transmission and braking integrated,dynamoand driving wheel axes unit as one,secondary spur gear parallel reducer,compact ... ,in order to meet the needs of users,the driving wheel use two specifications of motor selection,and mostput 3EL-YT ...