Yakima Holdup 2-Bike Hitch Mount Rack Add-On Add-on accessory designed for Yakima Holdup 2-bike hitch mount rack Lets you carry up to 2 additional bikes on the rear of your vehicle StrongArm technology protects your bikes and shortens loading time RocSteady hitch tongue provides stability; LockDown security cable Compatible with 2-inch or 1-1/4-inch hitch receivers; lifetime warranty