RAM® Handlebar U-Bolt Base for Rails 0.5" to 1" in Diameter - B Size RAM-B-166-GA38U The RAM-108-BU consists of a

The RAM-108-BU consists of a adjustable strap clamp base

and of course

The ball socket and male 1" -14 threaded post are made from high strength composites designed for prolonged outdoor use

diamond base and 1" diameter rubber ball

RAM® Handlebar U-Bolt Base for Rails 0.5" to 1" in Diameter - B Size RAM-B-166-GA38U The RAM-108-BU consists of aIdeal for motorcycle handlebars, the RAM B 231ZU consists of a 1" B size rubber ball attached to a zinc coated metal U bolt base. Designed to sit at right angles to the mounting rail, the U bolt base accommodates rails from . 5" to 1" in diameter. Included are black cover caps to be placed over the exposed ends of the U bolt as well as a composite adapter that can narrow the rail to a minimum width of . 5".