GoBike SOLEIL Electric City BikeSOLEIL features both Pedal Assistance and a Throttle, so you can pedal as much as you want, or press the thumb throttle and let the motor do 100% of the work for you. It also features a rear disc brake for significantly improved traction over other CTBs on the industry. This is the safest, most comfortable, and most feature full city e bike available. Specifications: Motor Voltage: 48V Motor Power: 500W Motor Peak Power (up to): 700W Motor Type: Rear