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
Me Again wrote:
You seem to think ST tires are something special, when if fact they are just cheap tires that dodge normal tire standards and receive inflated ratings that they do not deserve.
The fact that they are not intended to carry passengers allows them to play the game they do.
Chris
Since I was quoting Tireman9, I presume the first remark is addressed to him and will leave it to him to respond if he thinks it worthy of remarking on.
But I can't leave that second part alone...
No matter how many times it gets repeated in forums like this one, it is NOT a "fact" that ST tires are "not intended to carry passengers".
It's legal in many States for passengers to ride in trailers, and in even more for folks to ride in fifth wheels. Not a single trailer maker/tire maker/regulatory agency imposes any restriction on such use if the trailer has ST tires on it. Since the hazards of bad tires extend to everyone in the vicinity if such a tire blows, every tire approved for highway use must meet the same standards of safety.
ST's are not designed to steer or drive, but to track efficiently. For that reason alone they can't/shouldn't be installed on steered/driven vehicles
