Aluminum Frame and Weight Clamp, Frame Diameter Hole Sizes - 3/4", 1", 1 1/8", 30mm, 1 1/4" (32mm), Tach Gauge Mount 3/4 inch for Roll Cage, Comet Billet Aluminum Frame Bracket, Great for TaG Battery Mounting, DPE-KTB9MR Arrow Center Clamp Midget, Rookie Cadet 28mm