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
Quick Release Hitch Adapter for Trailers - The Robert Axle Project
Trailer Hitch Adapter for M12x1.25 - The Robert Axle Project
Replacement 2" Hitch Adapter for Thule Apex, EasyFold, or Helium Bike Carriers Thule Accessories and Parts TH8523185001
Trailer Hitch Adapter 3/8-26 - The Robert Axle Project
How I Modified a Thule Bike Trailer Hitch for an E-Bike with a 12mm Axle · Mike Kasberg
Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller Thule Accessories and Parts 50103033
THULE Cadence Double Child Bicycle Trailer - Green