OK, I did my search of the archives; still can't find my answer. My 1995 Zetec w/manual came with 185/70 X 14's. I upgraded to 195/65 X 14's. Everything fine so far, rolling radius is almost identical between these two combinations. I have now purchased a set of SVT E0's. The various wheel/tire calculators show that the rolling radius of the 205/50 X 16 more closely approximates the original 185/70 X 14 in total rolling radius than the 205/55 X 16 that I understand to be OEM size with the SVT E0's vehicles.
What am I missing here?
thanks - Bill
