Heavy duty wheel dolly is designed specifically for super single and flotation tires. 14" wide rollers accommodate even the largest super single and flotation truck wheels. Lifting capacity of 450 lbs. Reduces back injuries in the shop. Heavy duty tubular construction ESCO Heavy duty truck wheel dolly is used for moving around heavy, super single and flotation truck tires. As the wheel is removed, it rolls the tire to a work site, and then rolls it back and rotates the tire on special 14" rollers to align the tire back on the studs.