Specification:Item Type: Electric Rear Drive Motor Wheel KitWeight: Approx. 6650g / 234.6ozMaterial: Stainless Steel, Aluminum Alloy, ABS PlasticMotor Wheel Type: Rear Drive Motor Wheel (Waterproof Connector)Motor Rated Voltage: 36VMotor Rated Power: 250wMotor Speed: About 25-28km/HMotor Speed: 207-270RpmMotor Torsion (N.M): 29-31.2 N.MMotor Size (mm): Approx. 135-142mm / 5.3-5.6inMotor Matching Controller Current: 15AMotor : P19DMotor Torsion Arm: M14Applicable Motor Brake Disc: Approx. 160mm / 6.3inMotor Brake Type: Universal V Brake, Disc Brake Motor Wheel Position: Rear WheelMotor Structure: Brushless Gear MotorMotor Magnet Height: 24HNumber Of Magnetic Steel Poles Of Motor: 20Motor Operating Temperature: -20℃ - 45℃Controller Connector Type: Common Connector (Except Motor Waterproof Connector)Controller Rated Voltage: DC 36V 48VController Rated Current: 7AMaximum Controller Current: 15±1AController Speed Setting: 1-4.2VController Brake Input: Low LevelController Low Voltage Protection: DC 30/40±0.5VController Line Color Definition:1. Black Single Big Head Wire: Motor Wire (Waterproof Joint)2. Red and Black Single Large Head Cable: Power Cable3. Red Blue Black Green Yellow Single Row Five Wire Port: Panel Wire (5pin)4. Red and Blue Lines (Two): Power Off Brake Handle Line5. Red, Black and White Line: Thumb Throttle (3pin)6. Brown Black Yellow Wire: Power Assist Sensor Boost Sensor Wire (3pin)LCD7U Panel Function Description: up button, switch button, down button, power assist sensor , battery capacity indication, function, one way time, total travel time, throttle display, 6km / h thrust assist system, riding speed (Metric), riding speed (English), maximum speed, average speed, distance (Metric), distance (English), travel distance, total distance, battery voltage, brake display, backlight and headlamp