Swagman XC Cross-Country 2-Bike Hitch Mount Rack: The XC2 hitch mount bike rack only takes a few minutes to assemble and the upright ratchet arms easily adjusts to different bike frame sizes, will accommodate bike frames up to 59 cm (23. 2") : Sturdy design includes a built in anti wobble hitch device to keep bikes in place : Rack folds easily so that you can conveniently store when you are done using it : Easily transports up to 2 bikes and is compatible with a Class 2 or higher, 1 1 4" and 2"