What's the biggest tire that can fit on stock rim?

[VX KAT]

I'm really digging the new Toyo Open Country A/T II's. Whats funny is, about a year ago I sent Toyo an email suggesting they make their sidewalls on the A/T tire look a little more aggressive. Hmmmmm. Might see if I can get them in 265/60/18 (30.5x10.7) Only thing is it says this size will fit a 7.5-9.5 rim. Can anyone tell me what the drawback is to putting this tire on a smaller 7" rim?
Thanks

I've always though the OC A/T have a real similar look to the Nitto Terra Grapplers. Rowhard has the O/C and I really liked them when I saw them in person in Moab '09.
Both have a rather pronounced "square shoulder", with square-ish shoulder blocks. One tire guy told me last year that Toyo owns Nitto (or vise versa) and that's why they look so similar, basically same tire with a few differences in design....prob BS, not sure.

If you put a tire that says the min rim width is 7.5, on a VX 7" rim, you end up with a more "rounded" shoulder, and a bulgy looking sidewall. That's because it's got to stretch the sidewall all the way back to hold onto the narrower 7" rim.

I don't claim to know if it's doable or a good idea to do what you asked, but I do know it would end up with a very bulgy sidewall, and I personally wouldn't care for that look....because I specifically like the square shoulder look.


ORIGINAL OPEN COUNTRY A/T


NEW OPEN COUNTRY A/T II