Get an expander to hold the 2 inch rack, they sell one, but way over priced. I found one at the where I had my the 1.25" rack I installed on an old CRV way back in the day. They are about $20 to $30 or so. The 1 Up is a fantastic rack, will not be disappointed, I was very happy when I decided to move to theirs from my 12 yr old Yakima.
Edit: Found this
one: