6.5 inch Pingel Motorcycle Wheel Chock - Tubular construction makes this chock the strongest around. It has a Keyhole slot mounting system that makes it easy to remove and store so that your trailer can be used for more than just hauling around your bikes. With its tapered design it will stabilize up to 6-1/2 inch wide tires, allowing you to use this same wheel chock for your dirtbike, sportbike, cruiser, custom or drag bike. The design of this chock features increased rotor clearance for bikes that are equipped with a larger diameter rotor, such as the new sportbikes. This comes complete with all hardware needed to mount on a wood floor trailer. Dimensions: 6.5 inch. 1 per package.