Want to keep the stock look and water proof functionality of the Bafang wiring harness with your aftermarket brakes? Now you can. Simply add this cable to your brake's sensor wires and you are all set. Bafang's cable comes with three wires for Hall sensor type brakes. For reed switch type you will only use two of the wires (blue and black, avoid red it is +5 volts and not used for reed style switches).