MM49 wrote:
You can increase the speed rating by running up to 10psi above the sidewall pressure. I have an odd brand of ST tires on my TT. They were OEM from Winnebago. The tire is Ameritrack by Unicorn tire. The tires have the nylon cap that other premium tires have. They have performed well at 12psi above sidewall pressure. I have gone on two cross country trips without issue. One, Michigan to California, and Michigan to Ouray, Co. The funny thing I found is my trailer is severely out of balance side to side. The tires on the passenger side are wearing 50% faster. I plan on getting the Carlisle Trail RH tires for many reasons. The DFSS is one.
MM49
I am curious where you found documentation that Carlisle or Ameritrack allows an increase in the max speed for the ST type tire above 65mph?