Avid's take on the Aluminum Servo Mount for popular vehicles by Kyosho, Yokomo, HPI, and Hot Bodies. Whether you are upgrading an RTR, making a home-built project, or adding some bling to your racing ride, rigid aluminum servo mounts are critical to keep the servo secure for precise control. To further improve the system, this set includes 1.5 and 2.5 mm thick carbon fiber servo mount spacers. These rigid spacers ensure that your servo stays tight and the screws don"t loosen as the plastic shims compress over time.