These clip-on risers provide a rise of the selected height over a conventional Woodcraft race clip-on. This clip-on addition will give you the ability to maintain a race-type clip-on assembly with the option to locate the bars up higher for rider comfort or to relieve cockpit clearance issues. Made from tough and durable 6061-T6 aluminum. Adjusts riding position and clip-on bar location. 1-piece construction for ease of installation. Lightweight design. Mounting bolts included. Meant for use with Woodcraft Clip-On Bars - 7/8" diameter.