... mainland) 2.rear wheel motor 3.high efficiency 4.good price 5.depends on your requirments voltage:48V-72V ... starting performance,no magnet-hysteresis damping energy consumping and good creeping slop capacity4.no spark,no electric interference,explosion ... fuction, stepless speed regulating7.high cost performance,much more economical than governor8.superior water-proof function9.we manufacture the motor ...