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I have a STUDDS motorbike helmet purchased 10 years back which I wear even today. I have not met even one single accident, but several times due to my carelessness the helmet has fallen off my hands and landed on ground with a thud!

Now, I wish to know whether after a slip from the hand should a helmet be replaced?

closed as off-topic by David Richerby, Chris H, ojs, Argenti Apparatus, jimchristie Dec 6 '17 at 14:53

  • This question does not appear to be about bicycles within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

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    I'm voting to close this question as off-topic because it is about motorbikes, not bicycles. – David Richerby Dec 6 '17 at 7:53
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    Are the helmets too different for cycles and motorbikes? @DavidRicherby – Aquarius_Girl Dec 6 '17 at 8:00
  • Yes, they're very different in construction and the impacts they are designed to absorb. Many people would answer the same for both, but an answer based on one and backed up with data would not be valid for the other. The fact that a motorbike helmet is so much heavier means it has to absorb much more energy when dropped, for example – Chris H Dec 6 '17 at 8:10
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    Motorcycle helmets certainly look different to bicycle helmets! We have no expertise in motorcycle helmets so we can't give you advice about them. – David Richerby Dec 6 '17 at 8:11
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    shouldnt you get a new helmet after 10 years anyway?? – Ben Poulter Dec 6 '17 at 17:02
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Answering your general question:

PROBABLY not, according to Snell Foundation:

"I dropped my helmet! Do I have to go buy a new one?"

Generally the answer is probably not. Helmets are one-use items, but are quite durable otherwise, at least the ones we certify. Frequent dropping or spiking a helmet on the ground, or other hard surfaces may eventually degrade the helmet's performance. Similarly if the helmet falls to the ground at highway speeds unoccupied, the owner must be aware that some degradation may have occurred. In general, the real damage comes when the helmet contacts an object with a head inside. The Foundation recommends that if you are participating in an activity that requires that you wear a helmet, you avoid hitting stuff with your head. It can be difficult to readily determine if a helmet has been damaged, and the protective capabilities compromised without a thorough inspection by a trained professional. Some manufacturers may provide this service or direct you to these others that can perform these inspections. The Foundation recommends that if you suspect your helmet may be compromised, then replace it. If the helmet has been involved in an impact while in use, replace it.

But for your actual helmet you should have not any doubts - throw it away. As for motorcycle helmet it is very old. Even when new, your helmet presented worse performance than contemporary mid-end products.

Note for off-topic voters: It is off-topic.

but

It is very important safety issue.

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