The 235 bit is the width in mm so 235 is approx 9 1/4 inches. 265 is nearly 10.5 inches. the nearest direct size equivalent would be a 205 in metric. I've got 265/70/16 bfg's on my 110 and if I stand one next to a 7.50 x 16 it's much wider. The second number in a metric tyre size is the height of the tyre from the rim expressed as a percentage of the width.