Motor Power:2kW~5.5kW Motor Rated Voltage:48V Motor Rated Speed:2000RPM Motor Rated Torque:9.6~23.9N-m Motor Reduction Ratio of Moving: 12:1 / 15:1 / 16:1 / 20:1 / 25:1 / 28:1 / 35:1 / 50:1 / 70:1 Optional Accessories:Brake