I was think the same thing... I hate looking for big tire options only to see them top out at 37"'s in a 15" wheel. I want 39"'s or even 44"'s on a 15 dammit!! :*******BBP said:37x12.5r17.. Don't know why they don't make them on a 15 yet, if even just for testing. Seems a little bit wierd to me, maybe they can't get the technology down pat?