Product installation video:http://v.youku.com/v_show/id_XODk1MDAxODQw.html BAFANG 48V 750W 8Fun Brushless Geared Mid-Drive Motor Conversion Kits with integrated Controller and LCD Display Integrated Controller. With an integrated speed sensor, this mid-drive motor, which is compatible with standard bikes, has a rated power of 500-750W, a reduction ratio of 1: 21.9 and a maximum torque of 100-120 N.m, providing ideal power for vehicles. Light but strong and efficient, this motor greatly enhances riding comfort and is suitable for touring bikes and commuter bikes. This motor is black Products Details: Position: Mid Motor. Construction: Geared Motor Rated Voltage (DCV): 48V. Loading of 750W (Rpm): 110/130rpm. Rated Power (W): 500-750W Max Torque: 100 N.m.( Efficiency (%): ≥ 80%. Pedal Sensor: Speed sensor. Shaft Standard: JIS Weight (kg): 4.2 kg Speed Detection Signal (Pulses/Cycle): N/A Reduction Ratio: 1:21.9 Magnet Poles (2P): 16 Noise Grade ( dB): < 55 dB Hall Sensor: optional Connector: Waterproof. IP: IP 65 Certifications: CE/EN 14764/ROHS 
