Thule Apex Bike Hitch Rack 2" hitch mount carrier for transporting up to five bikes, that leans back when unloaded, allowing access to vehicle hatchbacks Bikes lock to carrier, and carrier to vehicle using the included cable and hitch locks Integrated auto pin functions as hitch pin, and moves into place with an audible click Hold Fast cradles absorb the shock of the road protecting your bike during transport and patented No-Sway cages prevent bike to bike contact Top-oriented hitch switch lever allows the arc style bike arms to fold down when not in use DO NOT install on a trailer or other towed vehicle