At what psi can I travel 65-75mph?
This Maxxis pdf has the same table. Using the table(s) above, my ST175/80R13 with 1060lbs load could run at a minimum 35psi with ~4% reserve capacity. Is there a +10lbs rule? I run with +1...
Forum Discussion
As Howard said, you can't run above 65 without risking tire failure because that's all your ST tires are rated for.
I would run them at max pressure so you have the benefit of all the tires capacity.
I would run them at max pressure so you have the benefit of all the tires capacity.
