Michelin AT2 tire evaluation at precisely 6 years old:

Was at my tire store last week and a Tiffin motorhome came. He had issues with all 6 Michelin tires and extreme sidewall cracking. The worst that Ive ever seen. Told me they were 4 years old and brought the RV in because he needed to go to a Michelin authorized center. I think Michelin was going to help him out but they wanted photos sent to them from the tire center before they could approve replacement. This guy told me he keeps the RV parked mostly in the shade.