... frictionFront wheel tread(mm)900PTORear positioned, non-independent, I35 type, 6 teeth ,540rpmRear wheel tread(mm)960Starting MethodElectric or handWheel base ... , constant contactFront wheel tread(mm)900PTORear positioned, dependent, I35 type, 6 teeth 540rpmRear wheel tread(mm)960Starting MethodElectricWheel base(mm)1465Rated ...