Allen Deluxe 740RR Swing Away 4 Bike Carrier for a 2" Hitch. Swing-away design offers easy access to lift-gate, without having to remove bicycles. Rigid control arms precisely guide the bicycles through a 90° arc as the rack is opened and closed, preventing unwanted collisions with your vehicle. Spring loaded Pop-Up Pins secure the rack in either an open or closed position. Four primary components offer quick assembly. Weight is centered around receiver hitch for easy installation on your vehicle. Included strap eliminates lower bicycle movement. For 2" Hitches only.