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Chockstone Forum - Gear Lust / Lost & Found
Rave About Your Rack Please do not post retail SPAM.
Topic
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Date |
User
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helmets - noddy or stormtrooper? |
3-Jan-2011 At 6:02:04 PM |
JamesMc
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Message |
The climbing helmet standard is based on dropping a sharp weight onto a headform that is wearing the helmet - the objective is that the weight must not penetrate the helmet. From my reading of the standard years ago, a leather cap would probably comply.
The bike helmet standard AS/NZS2063 is based on a headform wearing the hemet and being dropped onto a flat surface from a height of 1.5 m - the peak force must not exceed 500 Newtons. A pillow wrapped around the headform would probably comply with the impact test.
Climbing helmets are designed to protect against penetration (spreading the load over area) and bike helmets are designed to provide cushioning (spreading the load over time). These functions are completely different. To use a bike hemet for climbing, or to use a climbing helmet for cycling would be absurd.
JamesMc |
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