Aren't they stamped as max 80PSI on the side wall? I wonder if additional pressure would stop some of the sway you experienced? I've read that higher pressure will minimize any sway from sidewall flex. I always run my tires at max sidewall PSI anyway. Thanks for the information. I think I'm getting ready to place an order for 4 of these Carlisle HD's in LR-E.
Yes, they are stamped 80 psi, but they are rock hard at 65psi due to the light weight of my trailer.
I think the sway is from the road surface when the trailer wants to follow the tracks of the 18 wheelers, and doesn't happen all the time. I ran 80psi for a few miles and didn't like the most harsh ride.
I think you will be very happy with the HDs, especially if your trailer is a bit heavier than mine.