Mark wrote: >For a 15x7 wheel with a 205/50/15 tire, is an >offset of 40mm ok? I seem to remember that 38mm was optimal. Actually, I think for a 15 X 7 wheel, +35 would be optimal. 40 mm is the stock offset. +35 gives enough room for me to fit a 215-45-15 tire *perfectly*, filling out the wheel well, this tire size also maintains the stock rolling circumferance to an error margin of less than 1%. James