When figuring out the diameter of a tire, would the diameter of an A/T be the same as maybe an All season tire if both tires are the same size? I wasnt sure if the more aggressive tread would throw it off. Asking because I saw some 275/60/20 A/Ts
All-terrain tires are typically used on SUVs and light trucks. These tires often have stiffer sidewalls for greater resistance against puncture when traveling off-road, the tread pattern offers wider spacing than all-season tires to remove mud from the tread. Many tires in the all-terrain category are designed primarily for on-road use, particularly all-terrain tires that are originally sold with the vehicle.
Maybe this will answer your question. You can always just drop into any tire shop and I'm sure they would be happy to answer. Good Luck