Thule Vertex Hitch Rack Hitch mount carrier for transporting up to two bikes - compatible with both 1-1/4" and 2" hitch receivers Improved hitch switch folds arms down when not in use and tilts an unloaded carrier away from hatchbacks Arched mast and bike arm design for easier bike loading and carrying performance and increased mast height for improved ground clearance Thule Hold Fast cradles cushion bike and provide maximum bike security Reinforced cradle straps are 25% stronger than T3 straps and anti-sway cages prevent bike-to-bike and bike-to-vehicle contact DO NOT install on a trailer or other towed vehicle