Specifications:About Motor:Motor Type: Brushless High Speed DC MotorRated Voltage: 48V DCRated Power(Watt): 2000WRated Current: 42ARated Speed: 4300RPMSprocket: T8F ChainwheelHigh Quality Aluminum Motor And High Qulity Rotor Magnet All Copper.About Controller:Power: 48V 2000W 33A 15Mosfet Brushless Controller.Function:- Reverse, Speed Control, Three Speed (High Medium Low Speed)- Indicator Light, Electric Brake, Hall Sensor, Power Lock- Battery Charger, Brake Light.About LCD Throttle:Rated Voltage: 48VFunction:- Battery Power Display- With Power Lock Key, Ignition lockHigh Quality Rubber Handlebar GripsMotor Kit suitable for:Electric Scooter, Two Wheel Balance Scooter, E-BikeElectric Motorcycle, Go-Cart, DIY Engine, Etc.Let Cycling More EasyPackage includes:1 x 48V 2000W motor.( have foot stand)1 x 33A 15mos Controller1 Pair LCD Throttle with Battery Display and Power Lock.1 x T8F Crankset and T8F Chain, suit for motor sprocketPackage:Package size: 30cm x 26cm x 21cm (12'' x 10'' x 8'')Shipping weight: 6kg/13lbs