Package Included: 1* Wheel Motor 1* Controller 1* Turnbuckle 2* Brake Handles 2* Handles 1* Assist Sensor 1* Controller Bag 1* English Manual All Accessories for Installation Specification: Voltage: 48V Power: 1000w Rated Speed: 500 rpm Rated Torque: 45 N.M Motor Type: Brushless Gearless Motor Brake: 6 Screws Fixed Model Disc Brake Corresponding Controller: 48v1000w Controller Efficiency: ≥82% Travel Speed: 48km/h Unladen(29.82mile/h) Suspension Type: Front Motor Diameter: 420mm/16.54in Motor Shaft Length: 200mm/7.87in Motor Cable Length: 100cm/39.3in Wheel Diameter: 445mm/17.25in Motor Width: 82mm/3.263in Number of Hall Sensors: 3 Body Size of Magnet: 13.65*3*30mm/0.53*0.11*1.18in Flat Fork Width Requirement: Min.135mm/Min.5.31in Suitable Wheel Size: 50*10cm/20*4in.