The RAM motorcycle handlebar base contains a 1" rubber ball designed to sit at right angles to the mounting rail. The zinc coated metal u-bolt accommodates rails in diameter from 0.5" to 1.25" in diameter. The base also includes black cover caps to be placed over the exposed ends of the u-bolt.
U-Bolt Dimensions: Accommodates rails from 0.5" to 1.25" in diameter.