I just installed Carlisle HD's on my 4,000 lbs single axle Bambi and have only run it on one short trip. They rolled just fine.
However, The previous tires (Gremax load range E) dated 2012 shed the belt and lost air just as I pulled into home on the last trip, which is why I bought new tires.
Discount tire warranted the Gremax. (I bought the TT used and immediately took it to Discount and bought their road hazard/balance warranty) and ran it about 5K miles on the Gremax tires. Previous miles on them estimated by prev. owner to be about 3K miles. They looked fine and were stored covered.)
The praises some folks sing about LT tires are unwarranted, in my opinion because those tires will not carry the same load in 15" wheels that ST tires will carry. ST tires should be replaced every 5 yrs regardless of miles. LT and P tires should be replaced at 6 years according to Discount (not the 10 yrs quoted elsewhere.)
I don't believe the average tire owner knows more about tires than a reputable tire dealer such as Discount. Anecdotal information is not helpful when compared to the much larger experience-base of a large distributor such as they. IMO.
PS: I had them install metal-valve stems because of the higher/longer ratings. Rubber stems should not be on trailers, in my view.
