... CERTIFICATE HR-XSG,Brushless Motor 48V500W, X-Treme, X-500 Electric Scooter Model HR-XSGDimension (length x width x high) mm1845X750X1060 Motor 48V500WWheel base ... protection (A)28Motor Type brusless motorRated rotation speed (r/min) 340 Charging times 360 Rated torque (N.m) 18Charging time of ... ) < 60dB Gross weight (kg) 113 HR-XSG,Brushless Motor 48V500W, X-Treme, X-500 Electric Scooter