To measure overall height, put the tire against a wall so it’s straight up and down, then place a level at the highest point and line up the bubbles. The distance from the bottom of the level to the ground is the true height. You’ll find that tires get a bit taller when mounted on rims. The BFG G-Force T/AKD is a 275/40ZR17, and it’s 253/8 inches tall with a section width of 111/16 on a 9-inch-wide rim.