SportRack SR2901LR 2-Bike Lock and Tilt Platform Hitch Rack, Grey Moveable rubberized hooks secure the bike to the rack while protecting the finish Center folds down for rear vehicle access and folds up when not in use Hooks and wheel trays adjust to fit almost all bike frames and sizes Includes locks to secure the bike to the rack and rack to the vehicle DO NOT install on a trailer or other towed vehicle