U-Bolt Base, up to 1 inch OD with 1 inch ball (Stainless U-Bolt) FEATURES - Zinc-coated metal U-bolt base with 1 inch rubber ball is designed to sit at right angles to mounting rail;includes black cover caps for exposed ends of the U-bolt - Compatible with any B size RAM® Mounts component;ball and socket technology allows for near-infinite adjustability - Made of powder-coated, marine-grade aluminium for durability and reliability in the most demanding environments - Backed by a lifetime warranty Overview The RAM motorcycle handlebar base contains a 1 inch 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 inch to 1 inch in diameter. The base also includes black cover caps to be placed over the exposed ends of the u-bolt. The RAP-319 shim is also supplied to cope with the 0.5 inch bars. U-Bolt: Accommodates rails from 0.5 inch to 1 inch in diameter. Stainless steel. Body Material: Powder Coated Marine Grade Aluminium Ball Size: 1 inch Rubber Ball inch B inch Size