Upgraded MXUS Hub Motor Conversion Kit 72V 3000W for Off Road Electric Bikes. Rated power: 4000W, rated voltage: 72V. Brake application: disc brake/V brake. Waterproof grade: IP65, 142mm opening. Using double Hall line, don’t worry about Hall problem. 1hub motor (free 1 junction box, 2 plugs, 5 screws). 1 The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Please kindly note that. Also, the each additional item means. The the same color and size. Transit time may be a little delayed because of the. If you have any questions.