Specification: Model TSDZ2 mid-drive high speed geared motor Position Mid Motor Construction Gear Motor Rated Voltage 48V Power 500W/ Max Torque 80N.m Controller Integrated into the motor Sensor Torque sensor is integrated into the motor Power Assist Ratio 36%-300% Bottom Bracket 68mm-73mm Chain Wheel 42 Tlimited current 15 A Max Speed 37km/h Motor weight 3.6kg IP-Code IP54
Features: Universal compatiblity: Fits almost bikes in market with 68-73mm bottom bracket; Battery is optional, Free Gift Wrench. Torque & cadence sensor: Much smoother & better, as it can match your power, not just turn on or off when you do Installation Mode: Easily installation by the installation video & the instruction mamual we provided; Three riding Mode (E-bike Pedal Assisted bicycle, Pedaling bicycle, Pure Power bicycle) for you to choose, you can choose the E-bike to enjoy a long time travel, & also exercise. Light & smart: 30% lighter than a Bafang motor for almost the same power output. Package included:1 x Mid Central Motor 1 x VLCD-5 Meter 1 x Crank 1 x Speed Sensor 1 x Gear Button 1 x Wrench 1 x Manual