The antenna mast is threaded on a mount at the rear of the motorcycle. Unscrew the antennas if they must be removed. When installing, hand-tighten only.
Antennas for the radio and CB are different. For vehicles with a CB, always install the CB antenna (marked with the letters "CB" at the base of the mast) on the right side of the motorcycle. Installing the incorrect antenna for the radio or CB will result in degraded reception.