I bought some road tires that were made for flat resistance, but within two months, the sidewalls on both got damaged to the point where I was getting repeated blowouts. I wrote to the manufacturer, and they were kind enough to send me a replacement pair.
In the meantime, I bought some new flat resistant tires to replace the busted ones.
Now I have two new pairs of flat resistant tires, but I only have a use for one at a time. How long can I store a new pair before I have to worry about the material degrading, dry rot, etc.?
(not mentioning the brands here because I don't want to bash the manufacturer that sent me the replacement.)