【HIGH-POWER BRUSHLESS MOTOR】- A Brushless DC motors require less maintenance, provide long life, low EMI, and quiet operation thanks to the lack of brushes. The considerable power output of 1800 Watts ensures its high working efficiency. Voltage: DC 48 V. Sprocket for T8F chain. 【ULTRA-FAST ROTATION SPEED】- This 48-volt brushless motor has excellent torque characteristics and delivers 4500 rpm high-speed dynamic operation, intended to fill the need for a small motor with high performance. 【DUAL-DIRECTION DESIGN】- This DC motor bicycle is a forward and backward rotation motor, and you can switch the rotation in either the clockwise or counterclockwise direction by reversing the motor's wires. 【CONVENIENT SPEED CONTROL】- This 48 Volt DC motor comes with a speed controller to provide speed control in the desirable ranger, speed adjustment way: Potentiometer. Besides, two wrenches and one screw set also included for fixing the motor and making a safe operation. 【ALUMINUM HOUSING】- This 48 V brushless DC motor features a compact body, lightweight enough to carry and operation with ease, perfect for electric scooter, e-Bike, electric bicycle, e-Scooter, e-motor, motorcycle, small electric motor, etc.