Allows for up to 4 bikes with the 916XTR T2 carrier (sold separately, 2" receiver only) * SecureHook support arms hold bikes by grabbing their front wheels ? no frame contact is made * Fits 20-29 inch wheel diameter bicycles supporting tires up to 3-inches wide * Hitch Switch lever folds and stores platform when not in use or tilts platform down for rear of vehicle access, even when loaded * Reinforced tray provides maximum strength and rust-free protection