There is a site called "Tire Rack" that lists every tire by dimensions. I replaced a set of 6.50x16 bias with radials. Of course the rim was 6 1/2" and the wheel 16" so all I had to measure was the heigth with the weight on the tire which was 28 1/2". A 225-75-R16 was a match except it was listed as 29.3" tall. Since radials "squish" down some I measured it with the weight on them and guess what--28 1/2".


Evan