Just replaced all the tires with Michelin Aegilis Cross Climate load range E. Here in CO we take the RV out in the snow and I seem to be sticking with Michelin tires. I have seen folks happy with others but I run heavy and wanted the reinforced sidewalls. I also had another flat with a braided valve extension but got it to the tire shop. We used the braided extensions for a decade on our 22e but all the problems others have mentioned happened on our new 2018 25b. So bought the accu-pressure (Borg) metal stems and had them installed. Also have the Tire Minder i10 system. The former cheap system I had lost 2 valve sensors (one was crushed with the destroyed extension) and no way to replace them. I like the idea of the flow through sensors. Should be easy to fill the tires now.