what size tire can be mounted on a 8 inch wide rim
That size is actually recommended for at least a 9 inch wide wheel width. Due to the short sidewalls there is not enough flex to fit properly on a 8 inch wide wheel. You should run a 245, or maybe a 255/40/18 max on that size wheel.Check out the tire rack for size specs and recommended rim sizes.he tire is 275 mm wide. The rim is 8 wide. 1 inch = 25.4 millimetres so an 8 rim is 203.2 mm wide. While you may physically be able to force a 275 tire on to the rim, don't expect it to fit well (it will crown in the middle because the rim is too narrow).