Specification:Item Type: 36V 48V 500W Front Hub Motor Electric Bike Conversion KitMaterial: Stainless Steel + Aluminum Alloy + ABS PlasticColor: As Pictures ShownWeight: Approx. 5.6kg / 12.3lbMotor Wheel Type: Front Drive Motor Wheel (Waterproof Joint)Motor Rated Voltage: 36VMotor Rated Power: 250WMotor Speed: About 25-28km/hMotor Speed: 207-270 RpmMotor (N.M): 29-31.2 N.MMotor Opening Size (mm): Approx. 100mm / 3.9inMotor Matching Controller Current: 15AMotor : P19DMotor Arm: M 14Brake Disc for Motor: 160mm / 6.3inMotor Brake Type: V Brake / Disc Brake UniversalMotor Wheel Position: Front WheelMotor Structure: Brushless Gear MotorMotor Magnet Height: 24HMotor Magnet Pole Number: 20Motor Operating Temperature: Minus 20°-45°Controller Connector Type: Ordinary Connector (Except Motor Waterproof Connector)Controller Rated Voltage: DC 36V,48VController Rated Current: 7AController Maximum Current: 15±1AController Speed Setting: 1-4.2VController Brake Input: Low LevelController Low Voltage Protection: DC 30/40±0.5VController Wire Color Definition:1. Black single big head wire: motor wire (waterproof connector)2. Red and black single big head line: power line3. Red, blue, black, green and yellow single row five wire port: display line (5pin)4. Red and blue lines (two): power off brake handle line5. Red, black and white lines: thumb throttlel (3pin)6. Brown, black and yellow line: power assist sensor line (3pin)LCD7U Display Function Description: Up button, switch button, down button, power assist sensor sign, battery capacity indication, function, one way time, total travel time, throttle display, 6km/h thrust assist system, riding speed (metric), riding line speed (Imperial), maximum speed, average speed, distance (metric), distance (imperial), travel distance, total distance, battery voltage, brake display, backlight and