Quote:
Originally Posted by RedDevil
I would think that higher tire pressure means the tire flexes less each rotation, so it should age slower?
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If by that you mean less likely to crack, that would be so. But aging is more about the chemical and physical state of the rubber - how well it's strength is holding up and how well it is adheres to adjacent components. It's those things that cause the tire to fail. And those things seem to be more correlated to heat.