CURT 18063 Premium Hitch Bike Rack, Fits 2 Inch Receiver, 3 Bicycles Step 2001 2004 GMC Sierra corners 2001 2004 GMC Sierra 2500 HD 6 1 2 Foot Bed It features an open back receiver for easy cleaning including kids' bikes Adjustable rubber cradles will not scratch bike frames Tilts away for convenient rear vehicle access Arms fold down when not in use for compact storage Threaded anti wobble shank helps prevent bikes from swaying during travel Built in reflectors for added safety Protected by a durable black powder coat finish Limited lifetime warranty (one year finish foldable arms for a compact design and a tilt away feature for easy rear vehicle access