FatADDE 48V 1500W Electric Bicycle Conversion Kit for Mountain Bike Road Bike Folding Bike Bicyle add ebike High motor efficiency: 80% Max. Speed: 600RPM Controller:Use imitated torque control mode to achieve a smooth start-up of the power-assist vehicle, so that the power-assist driving will be smooth and natural; LCD Display Meter:it shows the riding speed, a single mileage and cumulative mileage, riding time, power-assist gear, motor power and temperature, battery voltage and charge status, brake status and the used ambient temperature and other cycling parameters; High Quality Sun Ringle Rims MTX39