Thunderpole U-Bolt Groundplane Mirror Mount Kit
A CB Radio antenna mount designed to clamp onto thicker mirror arms than the standard mirror mount. It has a built in groundplane which makes it ideal for use on vehicles with fibreglass or plastic cabs, such as: ERF trucks, tractors, boats, motorhomes, etc.
Compatible with 3/8" antennas and will fit on arm from 26mm up to 53mm diameter.
Note: Kit comes complete with Mount, RG58 cable (4 meters) & fitted PL259 plug ready to connect to your CB Radio.