[OLDFLM]

Originally Posted by ironworks

The sidewall height of the tire is more determined by the Profile or series of the tire and 265/40 would give you a better proportion that you wanted.

To do the math it goes like this
265 mm x .35 = 92.75 mm sidewall
295 mm x .35 = 103.25 mm sidewall
275 mm x .35 = 96.25 mm sidewall

but a 265/40 would be 265 mm x .4 = 106mm

So if you are maxed out on width go to a taller profile in the front then the rear. The profile number is just a percentage to the bigger the difference in width from front to rear the bigger the profile change needs to be. It is a pet peeve of mine to not have the same profile unless you trying for a big a little tire combo. If we were running a 335 rear tire and a 275 front tire the math would look like this.

335 mm x .30 = 100.5
275 mm x .35 = 96.25
275 mm x .40 = 110.00
or
285 mm x .35 = 99.75

Hopefully this info is slightly helpful. I have to work up tire combos all the time and it can be tough to get a perfect matched set as far as profile, compound, width and matching tread pattern.

295s are plenty big imho!



And I like the taller sidewall, but I guess I'm a little more old school than some... 255/45/18s front and 295/40/18s rear.