Thule T2 Pro X Fat Tire Holder If you need to mount a fat bike onto your Thule T2 Pro X Hitch Rack, we got you covered. The Thule T2 Pro X Fat Tire Holder fits tires up to five-inches-wide and includes two wheel trays. The Fat Tire Wheel Trays use the existing hardware that comes with your Thule T2 Pro X Hitch Rack. Features Fits fat tires up to five-inches-wide Includes two front wheel holders Model number 919505 | Thule | T2 Pro X Fat Tire Holder Black