Aluminum Alloy Material: The electric bicycle motor kit is made of aluminum alloy, which is strong and not easy to damage and can be used for a long time. Good Heat Resistance: The all copper coil of this DC motor group makes it have good heat resistance and can be naturally air cooled. Low Noise: The electric bicycle motor controller has low noise when running, does not disturb others, and does not disturb itself, which can bring you a better riding experience. Fully Equipped: This electric bicycle motor kit includes a motor, a controller, a speed knob, and an inverted switch. Universal: Electric scooter motor conversion kits are suitable for electric bicycles, electric bikes and electric motor bike and so on. Item Type: Electric Bicycle Motor Kit Weight: Approx. 3286g / 115.9oz Material: Aluminum Alloy, Metal, Rubber Motor Parameters: Rated Voltage: 12V DC Rated Speed: 3000 Rpm /Min Insulation Class: E Output Power: 350W Rated Current: 36.5A. 1 x Speed Control Knob Switch. 1 x Reduction Motor. 1 x Reverse Switch. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.