Not all of us can afford to going over a 10" rim on our custom forged wheels as the prices get ridiculous in the 11" plus range so a 19" 18" tire in a 305 to 315 that will fit a 10" rim, i.e. a little more sidewall profile to achieve this as has been said before.

I'll have to agree with several thing all ready said, taller sidewall on the 18's ,19's like some 40 or 45 series 305,315,335's and tread pattern does not matter as long as tire is functional. I just bought a set of 19 Forgelines from Frank at Prodigy and have been stressing over tire size. Looks like i'll have to settle for narrower tires that still have shorter sidewalls then I want. Thanks for asking and i'll buy if they make'em.

same goes for tread design function before looks or form so if an asymetrical tire works better tnan a directional so be it and vice versa

If they can make either a 17" or 18" tire that is 12" wide & 27" tall
That would be great