Before we took off to New Mexico year before last, I went by my local "trusted" tire dealer to seek out new LT tires for the 34' 7800# TT. He recommended Hi-Runs (China); I balked at first, but he told me that in two years of selling them, he had no complaints or returns. So, trusting him, that is what we bought. So far, they are the BEST trailer tire I have ever used.
There are several things that can effect tire longevity and performance:
1-Air pressure, of course must be maintained to recommended specs.
2-A good visual inspection before "taking off"; you could have a small cut
from a piece of road debris and if you had a failure, the first thing you do
is to blame the tire.
3-Your hitch setup and ride angle is vital to good tire life; pulling with an
uneven trailer angle will put "several" hundred pounds of pressure on the
trailing axle set.
4-Watch the road, a lot of people act like if it is laying in the road, they
must run over it....potholes, rocks, debris, etc. These things will break
a belt, or otherwise weaken the internal construction of the tire.
5-NEVER "hit the highway" with cold tires; they need to warm up and settle
before getting up to highway speeds. Our morning routine always
includes 4 or 5 miles of local driving before we get back up to speed; if
you have a problem, you would much rather find out at 45 MPH vs. 65
I find that a lot of complaints on different products can most times be traced back to a consumer that is negligent in either the application, treatment, or general use of the product. This is not to say that there is some "lesser quality" coming from overseas, but not all of it is. It would really surprise you if you found out about those good ol' MADE IN USA products that you swear by were actually manufactured in China and then repackaged here.