Looks to me as though it's 19's and up for the 02 Alty's. 18's seem to be way too small. (no offense, rims look GREAT)fvee20 said:And the sidewalls are thick because the tires are 245/45/18. The 45 means that the sidewall is 45% of the tread width or 110mm. I wanted the keep the overall height as close to stock as possible. These come out to 26.7 inches and the stockers are 26.6 inches.