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
RinconVTR wrote:
65mph is the tires rating...a safety rating, like most tow ratings. It is not a limit or a max that if exceeded, failure occurs.
Run max cold PSI, drive 65-70mph if you want to, but be darn sure of your overall set up and weights. Over 70mph with a camper isn't wise.
The rest is just luck...and bad luck can happen to anyone...anytime.
Yes, every breath we take might be luck!
Actually, 65mph might be a laboratory certified test and just maybe you should not run the tire at the test speed for too long.
HTH;
John
