Bummer deal here for me. I need to ferry my son's Suburban (dead motor) to San Diego in the morning. Borrowed a car trailer. Noticed that the diesel 3/4 ton Suburban made those tires squat down. Took it to get some air and looked at the side walls for the max psi. That was when I saw the "ST" China markings.
Now I'm worried about the tires holding up between phoenix and San Diego. I've decided to set the cruise at 55 mph and hope for the best.