The Swagman XC-4 offers the ability to carry virtually any style of bike frame without the use of any adapters. Wheel hoops accommodate up to a 3" tire width and a trick ratcheting arm system secure the bike frames. This rack is simple, effective, and functional. This rack will fold up against the back of the vehicle when not in use and is also designed with a gradual rise to offer maximum ground clearance. NOT FOR USE ON 5TH WHEELS AND/OR TRAILERS.