Rated voltage (DCV): 48V. Rated power (W): 500W. Pedal sensor: Torque Sensor Is Integrated Into The Motor. Bottom Bracket Length: 68-73mm. Bottom Bracket Diameter: 34-36mm. Noise level (dB):? 55. 1 PAIR Brake Levels. 1 Power Connection Cable. Fits 95% of standard bike frames with 68-73mm bottom bracket and 34-36mm inside diameter. 30% lighter than a Bafang motor for almost the same power output. Built in torque and cadence sensor – this results in much smoother acceleration than any cadence sensored mid motor. Kit includes all installation hardware and tools. The motor has an extra support mount – resulting in a much more reliable install than a Bafang BBS motor. 80Nm of torque is almost twice as much as a hub motor and can help you climb up any hill in your way.