Buyers Products 12 Inch Hitch Receiver Extension with Step Model 1804015Buyers Products 12 Inch Hitch Receiver Extension with Step Model 1804015 The Hitch Receiver Extension with Step from Buyers Products provides more clearance between your vehicle and your trailer. This feature lets you install a bike rack that will clear your mounted spare tire, or simply allow you to add an step plate for easy access around your trailer assembly. The extension is available in several sizes and accepts all 2 in. hitch accessories. It