Features: 1.High Quality Material: Electric bicycle motor kit is made of high quality aluminium alloy material, rustproof, high strength, sturdy and durable. 2.Standard: Electric motor rated voltage is DC12V, output power is 250W, and the rated speed is 2750RPM, with 11 teeth gear. 3.Excellent Performance: Electric gear motor supports working with low noise, low current and no sparks, good heat dissipation. 4.Package: Electric motor kit comes with a controller, a 3 hole 72 teeth chain wheel, a 146 links chain, and a throttle grip, meet your need. 5.Wide Application: Electric gear motor is suitable for electric scooter, motorcycle, electric bike, go karts, electric tricycle, and more. Specification: Item Type: Electric Motor Kit Material: Aluminium Alloy Motor Rated Voltage: DC12V Motor Output Power: 250W Motor Rated Speed: 2750RPM Motor Rated Current: 28A Motor Gear: 11 Teeth Motor Controller Rated Voltage: DC12V Motor Controller Rated Power: 250W Number of Chain Links: 146 links 3 Hole Chain Wheel Teeth: 72 Teeth Chain Standard: 25H Fitment: Electric Scooter, Motorcycle, Electric bike and Bicycle, Go Karts, Electric Tricycle, Mid Drive Motor Kit, Complete Set, DIY Engine System, Cycling Part, and More.