tnd2 wrote:
The load chart brings up a question for those in the know.
Using my example 7200#, assume 700# on the tongue, leaving 6500# on the tires/4 = 1625# per tire, load chart shows a 225/75/15 will carry 1760# @ 35psi. I've never run that low, even the 50psi I ran home on was just to relive some pressure loading on the belts. Maby im wrong for running them at 80psi? Mine look like they have worn evenly and not just in the center from over inflation.
Just an FYI.
Inflation pressure only has a small affect on evenness of treadwear. Other factors have much more of an effect. Put another way, using more than the minimum inflation pressure is better for tire durability, and the wear shouldn't be much of a consideration. Since we are talking about trailer tires that don't wear much anyway, wear should be a non-factor in the consideration.