After reading many thread about trailer tires, I've come to the conclusion it's not the ST tires that are bad. It comes down to quality, or lack of it. Low quality tires are bad. Many trailers come with the cheapest tires possible since few people pay attention to them when buying a trailer. They do list their ratings and ply equivalents, but some have poor quality control and a higher than average failure rate. Then after a failure we look at the tires, and say "ST tires, no wonder!". In reality there are very good quality ST tires out there if you shop quality and not price alone.
