I really dig the Desert Runner wheels but my '02 SE has 16's and the DR's only seem to come in a 15" size. Of course the 15's will fit but I wasn't keen on the idea of my speedometer being off.

The tire size calculator - thoughtfully provided at the top of this forum - says the speedo diff using 265/70/15 tires would be 3 MPH. But when I changed the tire size to 265/75/15, the speedo diff dropped to an insignificant .1 MPH.

I trust the calculator, but only to a point, and wanted to ask those with advanced tire/wheel knowledge whether 1) the calculation seems accurate and 2) given that a 75 will be taller and more narrow, whether in your humble opinion the height/width difference between the 70 and 75 aspect ratios is enough to be undesirable.

Thanks for any insight.