We just returned from a 4 month trip to Alaska which included a lot of rough gravel roads. Counting the 1250 miles we put on the tires when we picked up our 2008, 3055RL at Lakeshore RV in Michigan, and the trip to Alaska, we have a little over 13,600 miles on our tires and no problems so far.
We did have a fair amount of trouble with our Pressure Pro Tire Monitoring System, but after several calls to the factory, and a lot of great service from them, the system seems to be working like it is supposed to. One of the problems was that twice, the tire sensor allowed air to leak out of the tire. But the system did signal that the tire was low. The second time it happened, we had to drive several miles before we could find a place to pull over and check. To be safe, we put the spare tire on until we could check out the road tire. (Turned out it was OK) The spare was mounted on a steel rim, but we had no difficulty in using the lug nuts that came with the Aluminum rims as was reported by jdwigley.
We have one of those IR thermometers and we never found the tires to be excessively hot when we checked their temperature. We ran 80 lbs (cold temp) on the trailer, and the most they increased while on the highway was about 20 - 25 lbs. About 150 miles from our house, we had the whole rig weighed. The 3055 has a GVWR of 14,000 lbs. We were at 13870 lbs according to the scale. So it was not like we had a low weight trailer.
The first thing we did after getting our trailer home from the dealer was to get all the tires balanced. Then while we were on our trip to Alaska, we rotated the trailer tires as well as our truck tires. It appeared that the back tires were wearing a little more then the front tires, but that is probably due to them being “dragged” during sharp turns.
All in all, we have had good service from them. However, if we get 20,000 mile on them before needing new ones, I‘ll be surprised. But they are “OEM” tires and I never expect to much out of an OEM tire.
Just my 2 cents