The Swagman 64694 Fat Tire Tray is an adapter that replaces the wheel holders on the Swagman Chinook 64683 2 bike rack or the Swagman Quad 2 + 2 64692 4 bike rack. The 64694 Fat Tire Tray gives you the ability to then carry one fat bike on your rack with a tire up to 5 inches in width. If you wanted to carry additional fat bikes on your rack you can just add another Fat Tire Tray.
In order to make sure that your tire is being properly held in position there is a longer ratcheting strap which secures your tires in place. The Fat Tire kit can only be used with bicycles. Do not use on motorized or electric bikes, mopeds, or motorcycles.