Our 3-axis anti wobble system included with the LS Hitch Extension allows BackStage, MonoRail and SplitRail racks to fold flat on vehicles with spare tires. Utilising RockyMounts premium 3-axis anti wobble system the LS Hitch Extension allows BackStage, MonoRail, and SplitRail racks to fold flat on vehicles with spare tires. Works well for bike racks including Thule ® Yakima ® & Kuat ®. IMPORTANT: Reduces hitch receiver's weight rating by 50%. Extends rack 8 inches from receiver Utilises RockyMounts premium 3-axis anti wobble system Includes locking hitch bolt and Premium Metal snap on lock pod with rubber dust shutter and 2 keys For 2” hitch receivers Ideal for vehicles with spare tires, recessed hitches or van doors Includes locking hitch pin and premium lock pod If you order any extension alongside a hitch rack we will key match all components before it leave our warehouse.