Well I ended up not needing a tire. It was completely unrelated to the tire. It was the upper motor mount AGAIN. The bolt had backed out and was hammering the frame. My indie cleaned it up, put Loctite on it and torqued it back down. Some of you may remember last year when this bolt backed out and broke in the head and HD replaced it under warranty. So I guess I'll check it every ride from now on and retorque it.
I did go to the stealership to talk to them about it and they said there wasn't really anything that could be done other than keep an eye on it. MOCO said the same thing when I called them from the parts counter.
I'll put my thinking cap on soon and come up with a permanent solution. Also, when I got back from HD, the other one had backed out. I put Loctite on it and retorqued it. So I guess I'm good for another 4-5000 miles.