A friend has offered me a brand new set of Michelin Pilot Sports at about half price. I’m sort of concerned with their age though, they were manufactured in 2012. These have never been mounted or inflated, stickers are still on them. The “Regulators” around the globe say six years is the max safe age for a tire, others say ten. Tire manufacturers balk at all of that. Anyway it has me a bit concerned, but I don’t want to be. One tire aging study showed that low aspect tires aged much better than high aspect tires - performance tires resisted aging. Any thoughts guys and gals? BTW, I checked my rear tires that I bought from Discount Tires in 2010, they are stamped 2006!!! And I have used all of the available tread without issues at all, even a trip from Tampa to Dallas last year.