Marson USA Low Profile Chock Removable Motorcycle Wheel Chocks - Designed for Sport Bikes Black Available without the removable hardware if you prefer to bolt it directly to your transportation platform. Message us and we'll credit you $5.00. Designed for Sport Bikes - works for any bike with a tire 120mm wide or smaller. Constructed of 1" heavy duty steel tubing. Black powder coated for a sharp appearance. Dimensions: Exactly 4-7/8" wide inside x 14" long x 9" high - 3/8" hex head sleeves and phillips pan head bolts are 1" long. Mounting bolt hole pattern: 3.5" side to side on center. 9-3/4" front to back on center.