I have to agree with spanky. My trailer tire experience has been less than stellar. Im confused when these guys say they have trailers coming from the factory with trailer tires. I thought BCB, long ago, made the decision to run passenger tires on their new trailers. Anyway, I pull my trailers on the interstate and rarely go 65. I dont know who does. Thats what a load range c trailer tire is rated for. Every time you pull any distance and pull faster, you are weakening that tire. Of course, the pax tire is rated for interstate speeds. If you want to run a trailer tire, definitely go with a load rang D tire. I prefer the pax tire.