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Old 04-01-2008, 06:01 PM   #49 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Bay Area
Posts: 1,151

The Miata - '01 Mazda MX-5 Miata
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Quote:
Originally Posted by Frank Lee View Post
Most of the time it is.
No, old and worn are two different things.... My spare tire is 8 years old, but has perfect tread.... That's the point - plenty of people ride on old rubber... Take a peek the next time you're in a parking lot

Quote:
Originally Posted by Safety Research & Strategies, Inc., 2005
Following Firestone, SRS began tracking cases involving “aged” tires—tires older than 6-years—that have
failed catastrophically causing crashes. With more than 65 documented cases, several patterns are
emerging. Nearly one-third of these cases involved spare tires, approximately one-third were tires
purchased used. The remaining cases involve tires that were mounted on little-used sports cars, old stock
sold as new, or their histories are unknown. What links all of these cases together is the fact that the tires
have ample tread and appear safe when they are put into service.
Old != worn

and, I should probably replace my spare tire
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