[Chris in WNC]

Friend of mine bought a Model A in 1990 and put 5 new Firestones on it.
He kept the car 15 years but drove it very little- probably less than 200 miles.
Always garaged so no excessive UV light exposure. (is this really the cause of tire degredation?)
When I bought the car from him in 2006, the tires still had the nibs on them.
Over the next 7 years I moved them around to different As and drove them frequently but no long trips.
Sold them (on a car) in 2013 and they were still on it when I bought the car back last September and drove it home 400 miles.
They are just now starting to get some fine cracking on sidewalls.
Guess I've just been lucky- I plan to replace before making any more long trips.....