ROCKYMOUNTS MONORAIL HITCH RACKIf you have a full-suspension mountain bike or a bike with a unique frame, then you'll want to use a platform style rack that has no frame contact. The Rocky Mounts Mono Rail Hitch Rack is a platform rack that holds kids bikes, road, mountain, and fat bikes with ease. It has an easy-release handle that folds the rack into three different positions: stow, in use, and tilt away. It will fit up to 5. 0" wide tires, bikes with up to a 48" wheelbase, and tire diameters from 20" to 29". It has 3" of side-to-side tray adjustment to avoid seat and handlebar interference and has 13" spacing between the bikes that accommodate clearance for fat bikes. The Mono Rail includes an anti-wobble locking hitch pin and cable lock. The rack can be expanded to three bikes from two with the Mono Rail Add-on. Features Easy-release handle folds the rack into three positions Fits tires up to 5. 0" wide and wheelbases up to 48"3" of side-to-side tray adjustment to avoid seat and handlebar interference Specifications Mounting Type Hitch Bicycle Capacity2Foldable Yes Lockable Yes Distance Between Bikes13"Cradle Material-Anti-Sway Attachments-Maximum Weight Capacity60 lbs per bike | Rocky Mounts | Monorail Hitch Rack Black, 2" Receiver, 2 Bike