Why isn't this sold yet? I have the same OG racks but mine is a single with an add-on since 99% of the time I'm only carrying one bike. I'm never selling mine.
The rack can be used with 2" and 1 1/4" hitch. All included.
I was using it with my Giant Trance size medium with 27.5 2.6.
You are welcome to stop by and check it out, bring your bike if you want.