Check the listing for details. Electric Bicycle Conversion Kit Electric Rear Wheel for Bicycle, Rear Wheel US. Condition: New. Listed at 311.58 USD. Specification Material: Rubber, Stainless Steel, Aluminum, Copper Process: Baking Paint Color: Black Style: Modern Assembly Required: Yes Battery Type: 48V 20A Lithium Battery (Protection Board Current: >35A) (Not Included) Motor Type: Brushless Toothless Motor Display Type: LCD Installation Position: Rear Wheel Brake Type: Power-Off Brake Lever Controller Type: 1 * 48V 1500W Controller Voltage: 48V Power: 1500W Speed Gears: 7 Motor Shaft Diameter: M14 Number of Hall Sensors: 3 Rated Speed: 500RPM Motor Efficiency: ≥ 82% Max. Load Capacity: About 150kg/330.69lbs Wheel Size(D*H): 58*25cm/22.83*9.84in Wheel Width: 10cm/3.94in Package Size: 60*60*28cm/23.62*23.62*11.02in Gross Weight: 14kg/30.86lbs Net Weight: 13kg/28.66lbs .