Replacement 2" Hitch Adapter for Thule Doubletrack, Hitching Post Pro, or Vertex Racks - Qty 1 Thule Accessories and Parts 853-7489
Thule Replacement Aluminum Shank Adapter - 1-1/4" to 2" Thule Accessories and Parts 853-7292
Thule Hitch Extender - Rack N Road
How to Get a Thule T2 for 1-1/4 Inch Hitches to Fit a 2 Inch Trailer Hitch Receiver | etrailer.com
Amazon.com : Thule Apex XT Hanging Hitch Bike Rack, Carries 2 Bikes, Perfect for Traveling with Multiple Bikes - Quick, Tool-Free Installation, Suitable for a Wide Variety of Bike Sizes and Frame
Thule 9057 Range 4 Trailer Hitch Receiver Bike Rack, 2" RV Rated– Van Kam Truck & Trailer