harley
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Personally I don't trust any tire over 6 years old on any vehicle for anything beyond a couple of miles to the grocery store & back. Definitely not at highway speeds, especially if you decide to load the wife, kids, dog, grandma and a trunk full of luggage. Time, sun, ozone, and underinflation - not necessarily in that order - kills tires.
RV tires are even more susceptible to failure due to the loads they carry.
You know, in some areas of the world they have this thing in the atmosphere called "moisture". Sometimes it can extend the life of tires and other things that tend toward dry rot.