Product Description Package Included 1* Electric Motor 1* Controller 1* Crankset 1* Chain 1* LCD Throttle with Battery Display and Power Lock Details Brushless DC Motor: It has the advantages of low noise, smooth operation, long service life, and low maintenance cost.Cooling Holes: There are some heat sinks on the surface of the motor for timely cooling and stable operation of the motor.Handbar Grips: They are comfortable to touch without easily slipping and allow you to control easily. Specifications Color: Black and SilverMaterial: Aluminum Alloy, Copper, Magnetic Steel, and IronProcess: Stretching, Welding, Polishing, SprayingMotor Type: Brushless DC MotorPower: 2000WRated Voltage: 48V DCRated Current: 42ARated Speed: 4300r/minTorque: 5.4N.mSpeed Control: 3 Speeds (High, Medium, and Low Speed) Maximum Load: 100-150kg/220-330lbsSprocket: T8F ChainwheelPhase Angle: 120°Controller Size: 13.4*10.7cm/5.27*4.21inMotor Size(D*H): 11*10.2cm/4.33*4.01inMotor Hole Distance: 9.5cm/3.74inFeet Bracket Length: 5.6cm/2.2inPackage Size: 30*25*20cm/ 11.81*9.84*7.87inGross Weight: 6.5kg/14.33lbsNet Weight: 6.31kg/13.91lbs Build to Last The premium aluminum alloy, copper, magnetic steel, and iron with stretching, welding, polishing and spraying processes make it not easy to rust, wear, and deform, so it can withstand the test of time. Powerful Function It has a powerful 2000W, 4300rpm, T8F sprocket, and 3-speed control (high, medium, and low), which in turn can bring you a more efficient performance and make your riding enjoyable. Excellent Load Capacity The high-quality material and performance make it load 220-330 lbs, so you can use it with peace of mind. Economical and Practical With it, you can DIY your own electric bike, electric scooter, etc., to give them more powerful power and reduce the physical burden on the rider, so that you can travel more coolly! Application It is suitable for electric scooters, small motorcycles, two-wheel balance scooters, karts, electric bicycles, DIY engines, etc. Notes 1.The loading speed is affected by other factors, please refer to the actual test results. 2.Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.