My current '97 5er has around 155k miles which isn't many miles per year.
I can remember by the tires I've used and bought for the unit.
..Used the trailer 11k the first summer with USA made Marathons.
..The 2nd summer dumped the Marathons for Cooper SRM II LT tires. Ran them for 52k miles.
.. Ran the next set of Firestone transforce HT for 45k miles. They get replaced this spring with Cooper HT3 LT tires.
.. Current BFG Commercial LT tires has around 47k miles.
I would say there are lots of RV trailers on the road with more miles than that and in a shorter time frame than mine..
