There is a local used tire warehouse in the town where I live and after hearing everyone rave about how good of a tire you can get I decided to check it out. They had a set of 265/75/17 BFG AT KO with 30% left on the tread for $30 a tire put on. I'm not normally an avocate of buying used tires because you dont know who had them and how they were taken care of ? I really want a set BFG's but don't have $800 plus being I have a one month old at the house or at least I shouldn't spend the 800 +
The sidewall height is a percentage of the width. So a 265/70 sidewall would be 265 * 70% = 185.5mm. Stepping up from a 265/70 to a 265/75(195.75mm) you add about 10.25mm x 2 = 20.5mm or about 1 inch in total diameter.