National Products RAM Mount Vehicle Mount for Bike - Aluminum, Metal - TAA Compliance RAM-B-231U

The RAM motorcycle handlebar base contains a 1" rubber ball designed to sit at right angles to the mounting rail. The rust proof metal u-bolt accommodates rails in diameter from 0.5" to 1" in diameter. Included are black cover caps to be placed over the exposed ends of the u-bolt and a composite adapter that can narrow the rail to a minimum width of 0.5".