I have them on my TT and have had no problems for over two years and LOTS of miles.
Also a set on a 2 wheel utility trailer that I load to the max often. The utility trailer has been to D.C. twice and FL once, loaded heavily, still look like new. All were balanced from the start and checked at about 1 year. I am religious about checking air pressure each time before the trailer moves. Both sets load range D. Will buy again.
2001 Ford F-350 Super Duty CC Dually, 7.3 Diesel
2013 832IKBS Flagstaff Classic Ultra Lite, Hensley Arrow Hitch, Carlisle tires
2016 days camped....211, it ain't over yet!
On the road to ALASKA May 6, home Sept. 13, 2016. 23 states, 3 Canadian Provinces, up to the Arctic Circle, 17,300 miles, 131 days on the road. 1 flat tire, 4 oil changes. What a beautiful trip!