72V 3600W Peak Sine Wave Brushless DC Motor Controller for QS Motor Up to 2000W Electric Motorcycle Features： 1、Increase Motor Power: Our controllers effectively control the motor, which can significantly increase the speed of the motor and effectively increase the power of the motor. 2、Stable Performance: Electric motorcycle controller is sine wave type controller, the effect is stable, not easy to fluctuate, which is brushless DC controller with self earning function. 3、Powerful Function: Sine wave controller can protect the battery and extend its life, also has the capability to increase the driving distance, providing you with an enhanced riding experience. 4、 Material: Electric motorcycle controller is made of metal and ABS, high temperature and erosion resistance, professional manufactured to ensure stable performance and high reliability. 5、Fitment: Generally, it matches well with QS hub motor or QS mid drive motor, if you want to match with new brand motor, some parameters should be tested by yourself. Specification： Item Type: Electric?Motorcycle?Controller Material: Metal+ABS Rated Voltage: 72V (36-100V, default 72V) Bus Current: 50-65A Phase Current: 240A Speed: 85 km/h (Specific speed needs to be combined with vehicle weight and wind resistance) Under Voltage Protection Value: 0.875 x VCC ± 1V Motor Control Mode: FOC Brake Mode: Positive (12V) / Negative Compatible Under Voltage Protection: 62-64V Over Voltage Protection: 91-93V Rated Power: 1440W Peak Power: 3600W Limited Value: 48-52A Operating Temperature: -20-60℃ Fitment: Fit for ≤2000W QS Motor Electric motorcycle mobility scooter Package List： 1 x?Electric?Motorcycle?Controller?? 1 x Wiring 5 x Screws