Originally Posted by PSUSMU
It doesn't matter if you have a 18" or 19" wheel... the overall rolling diameter of the tire is nearly the same because you use a different aspect ratio.
I would think that minus one inch of wheel would be like minus about 12 or so mm of "aspect ratio" Though I really have no idea what I am talking about. I think that with a 235 tire I will have no problem either way. Do you agree?