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Old 10-15-19, 05:06 AM
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Unca_Sam
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Location: Columbus, OH
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Bikes: Pake C'Mute Touring/Commuter Build, 1989 Kona Cinder Cone, 1995 Trek 5200, 1973 Raleigh Super Course FG, 1960/61 Montgomery Ward Hawthorne "thrift" 3 speed, by Hercules (sold) : 1966 Schwinn Deluxe Racer (sold)

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Originally Posted by Greenhil
Might have been a sales pitch, but a guy at an LBS told me the materials degrade over time, making the helmet unsafe, or at least less safe. When I bought a new helmet he told me to go home and take a hammer to my old one so no one could use it (it was 20 years old - so it was an extreme example).
Child car seats are another example. Plastics degrade in the sun, though car seats see a lot more sun than a helmet. CPSC recommends a 5-10 year life, or following manufacturer guidelines.

If a helmet's crashed, cut the straps so it can't be used after you throw it away.
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