In order to address the debate of when a helmet should be replaced, here are a few guidelines and resources that can help you make the decision.
1) Replace a helmet if you've crashed it. (Duh).
- its taken a hit and done its job, now its time for a new one because the material made to absorb and distribute impact is no longer able to perform properly.
2) If its too old
(older than five years), replace it. Helmets materials don't EFFECTIVELY last forever and, as knowledge is added and standards improve, and older helmet simply won't offer the protection of a modern one (remember when helmets were leather hats with some padding?).
- Here is some info from the Snell Memorial Foundation regarding helmet age:
http://www.smf.org/faqs.html#10 Quote:
Why should you replace your helmet every five years?
The five year replacement recommendation is based on a consensus by both the helmet manufacturers and the Snell Foundation. Glues, resins and other materials used in helmet production over can affect liner materials. Hair oils, body fluids and cosmetics, as well as normal "wear and tear" all contribute to helmet degradation. Petroleum based products present in cleaners, paints, fuels and other commonly encountered materials may also degrade materials used in many helmets possibly degrading performance. Additionally, experience indicates there will be a noticeable improvement in the protective characteristic of helmets over a five year period due to advances in materials, designs, production methods and the standards. Thus, the recommendation for five year helmet replacement is a judgment call stemming from a prudent safety philosophy.
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The age issue as addressed by HJC Helmets:
http://www.hjchelmets.com/faq_10.htm Quote:
Q: How long can a helmet last?
A: HJC Helmets are constructed with the best materials available to offer you a long lasting product. However, due to the fact that helmets are used in a wide variety of conditions, it is impossible to specify an exact product life span. Due to UV damage, adhesive and component aging, and other, HJC recommends changing a helmet every 3 to 5 years.
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The recommendation from Shoei:
http://www.shoei-helmets.com/road/m_main.aspx Quote:
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we, SHOEI, recommend replacement in 5 years after it's first purchased at retail
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3) If the liner, straps or other items are worn significantly and/or the helmet no longer fits correctly.
Here's the Shoei list:
Quote:
1. The helmet was subjected to an impact.
2. The comfort padding or the retention system has become loose due to heavy use or display signs of deterioration.
3. The synthetic foam padding displays signs of heavy use and the helmet feels too loose. Test: with the retention system fastened, the helmet turns to the side when you gently shake your head.
4. There are indentations in the EPS liner and/or white scratches can be seen on surfaces with black paint.
5. Even if none of these is applied, we, SHOEI, recommend replacement in 5 years after it's first purchased at retail.
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05-27-2008, 02:12 PM
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