Thermoguy wrote:
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That is the marketing pitch for why you should buy ST tires, but have you checked the sidewall on them? I had a Marathon, Hercules, and GY Wrangler all side by side not mounted. The Wrangler was much tougher to the touch than either of the other 2. All E rated tires, you could flex the others very easily - the Hercules was bought to get me out of a bind, but very soft side wall. The "steel" belts in an LT tire run crisscross to each other, where the ST tire runs around the tire. The side wall on the LT tire is much stronger and the overall tire weight is more - don't you think taking a truck off road and over rocks is harder on a tire than straight down the highway?
With that said, I have a heavy horse trailer, gooseneck, that has has LT tires on it from new. I jack knife the trailer all the time to park next to my barn, have never had an issue. That trailer gets way more abuse as far a driving circumstances than the RV due to the nature of the use. My first set of original tires went 10 years (I didn't know as much about tires as I do now). I replaced due to dry rot... The GY Wranglers on them now have almost 5 years and look new.
If you do a search on ST vs LT tires for towing trailers you will get an awful lot of information. Some of course, will come from trailer forums and be of questionable reliability. Read some of the others, from tire dealers/manufacturers or RV technicians. After a while you will get a "feel" for what most people believe.
Here is one that is relatively honest.
ST vs LT tires
