Allen Sports Premier Hitch Mounted 4-bike carrier for vehicles with rear mounted spare tires mounts quickly and easily to your 2" trailer hitch. The arms "snap" into place right out of the box. Allen's new dual-compound cradle system securely holds your bicycles in place and the rack's large padded spine shield protects your bicycles as well. The powder-coated rack installs in just minutes with a no-wobble bolt and an integrated locking loop offers a great place to secure your bikes.