295/80R24.5

295 mm across the tread, a sidewall 80% of that — 236 mm — on a 24.5-inch rim. That puts the whole wheel at 43.1 inches tall.

It mounts on a rim between 8.5" and 11" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 283 mm across at the narrow end and 308 mm at the wide one. Written the way lift kits and wheel wells are, it is a 43.1×11.6R24.5 — tall by wide, in inches.

Same 24.5-inch rim, height within 3%. Past that the speedometer starts lying and things begin to rub.

If you fit something taller

A taller tire covers more ground per turn, so the needle reads low and the odometer counts short. Over ten thousand miles on the dial, the last column is what you really drove.