I have the T2 for four bikes and it did not clear my stock 32 inch tire. I needed the hitch extension
One issue that I had if you go off road with the rack, the thin wall tubing that goes into the receiver will start to crimp. I bought some heavier two inch square tubing and replaced that piece and have had not problems since.
Since I also use the rack with my van, I made that tube longer while I was at it and welded a riser to get the rack higher when it is on the van