Proper PSI For Trailer Tires?

Tumbleweed13 wrote:
I'm curious as to what you consider the correct psi, to put into your trailer tires? I have a toy hauler, 28' twin axle. Fully loaded i'm 15 - 16K lbs. The max rating on the tires, is stated at 80psi. I've always pumped them up, to 75psi. Giving me a bit of room for pressure increase, due to heat.

I have a buddy, that has a very similar set up, and he only runs 50psi. His tires have the same max psi as mine. Is this ok too?

Trailer tires are rated at max PSI when the tire is cold and are engineered to withstand the pressure increase due to heat build-up. Those pressure ratings are intended to maintain proper tire shape (tread and sidewall) during operation to withstand the rated load.

I always run trailer tires at MAX RATED PSI regardless of the load on the trailer. This is to ensure the sidewall is supported and I'm not causing excess wear on the tires. Your buddy running Load E tires at 50PSI is flirting with disaster. Run the tires at max and they will stay cool and perform as designed.

KJ