Quote:
Originally Posted by Polski
In all the information and publicity concerning helmets, I have not seen any mention about the normal life expectancy of a helmet (assuming that they have not been dropped or had any impact). I have two, a 97 and 98 model, both DOT and Snell certified. Since that time, has the material for the outer or inner shells changed or improved enough where it would be wise to buy a new helmet.
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Everything I've read on the matter of life-expectancy (minus drops) is no longer than 5 years. Foam, padding, plastics, etc. break down over time and lose their effectiveness in protecting one's cranium.
Sounds like you should ditch the oldies and buy a new one.