Quote:
Originally Posted by mstateglfr
Are you suggesting the protection within a helmet has a 3 year lifespan and after 3 years it is no longer safe?
If you are suggesting that, does the safety decrease in those 3 years, or does it stay flat and drop off a cliff at 36 months?
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UV and general wear/tear degrade the foam in helmets. No idea if 3 years is a reasonable lifespan or not. I’ve heard manufacturers recommend that replacement interval, but it always stuck me as a bit like the old 3k mile oil change intervals for cars - overly conservative, and likely not optimal for consumers. That said, I replace mine every 3-5 years, they usually look pretty beat by then anyways.