Proper Tire Presure

Beerdawg wrote:
What should the proper tire pressure be on ST205/75R15 tires on a travel trailer? Thanks

I'll repost the OP question.
If the OP tires are Carlisle trailer tires he will have to use max sidewall pressure per Carlisle tire warranty. Other ST tires brands may have that in their warranty clause also.

From Carlisle ST tire warranty pages; (snipped)

-Maintain air pressure at the maximum PSI recommended on the tire sidewall.

-The Warranty is void if the tire or wheel fails due to damage from improper inflation pressures, exceeding the maximum speed limit, or overloading the tire beyond the maximum load capacity stated on the sidewall