Using the Race Wire is easy. First, identify the section of the motor wires under the propeller tips that you need to replace. Then, carefully install the Race Wire in place of that section. When swapping motors, you don't have to open up your quad to access the 4in1 ESC or AIO board. Just work with the Race Wire. If you want to mount top - facing LEDs, use the flat surface on the Race Wire. As for maintenance, regularly check the surface of the Race Wire for any signs of excessive scuffing or damage. If you notice a prop has hit the board hard, inspect it closely. Also, always make sure to keep the isolation between the carbon and the board as required. This will help ensure the long - term performance of your quad.