As I said there are now a few tires with the new M speed ratings. Easy to find.. These are rated 81 MPH for example..
https://www.etrailer.com/Tires-and-Wheels/Taskmaster/TR20515D.htmlYou cant believe everything you read about a certain tire having blow outs and are considered a junk china bomb..
There are just too many variables that are not told.
Examples,
hitting a nail or sharp object at highway speeds
Under inflation for the weight being carried.
Trailers with duel axles having the tire sidewalls flexed, pulled, pushed ect from owners making sharp turns backing in their trailers.
Driving faster then 65 MPH.
There is so much these owners dont tell you or dont really know why they got blowouts in the first place. Once the tire shreds apart it would be hard to tell what caused it..
Dont believe the hype..
Heat kills.