What does the choice of 48V60V72V mean? This means the motor is wide voltage designed, it can accept 48V or 60V, 60V or 72V battery. The controller is also a wide voltage design in selection. It can run on 60V or 72V batteries, with 60V72V options. Name: 12 inch Split Hub Motor. Voltage: 48v 60v 72v. Power: 1500w 2000w 3500w 5000w. Speed: 48v1500w: 55-60km/h; 48v60v2000w: 60-80km/h 60v72v3500w: 60-90km/h; 60v72v5000w: 90-120km/h. Magnet steel height: 30H. Tyre model: 62-203 (12½x2). 1 12 inch split hub motor with tyre. 1 LCD display with throttle. 1 3 screw connector box. Press Power botton and Function botton together. P8 = Speed limit.