Originally posted by bobdobbs
That test is seriously flawed since they didn't keep tire size constant as wheel size changed. The widest tires were on the largest wheels and they concluded the wheel size was the reason the lap times were the best. Not too convincing.
they used plus sizing... the same as we do to keep tire diameter same (or as close as possible) as stock... seriously flawed? i trust the GRM article more than this theorhetical conversation from a group of people that probably haven't tried all the various sizes. it seems "real world" enough to me...