Thanks for the input. I've been searching for what is available as made in USA, and so far I've come to the conclusion that I will need new wheels too, as the Serie06 aluminum wheels are clearly rated at 60 psi on their website.
After thinking about the available tires I then began thinking that I'd like to get as close to the same height as our present 225/75R15 due to our Equalizer WD hitch that is set up wonderfully. When we pulled this 34' TT home we were amazed at how much easier it handled with the EQ hitch than our previous shorter TT with external sway bar.
So, what I'm thinking sounds like a good USA fit is a 225/70R16 tire which is exactly the same dimension (within 1/10") as the 225/75/R15. There seem to be quite a few tires available in this size. Still looking to see if I can find one that is LT and have a good weight/speed rating. I'm thinking the 107 at 2149/tire would sound good as I believe our TT has 4k axles (gvwr=8500 with 500-700 advertised for tongue).
All input really appreciated.
