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<blockquote data-quote="Auburn" data-source="post: 804324" data-attributes="member: 5661"><p>This is from my memory of a convesation with an Arai tech at the race track back in '97 as he serviced my helmet and checked it over and installed a new visor.</p><p></p><p>I asked him how a helmet works to protect your head. He said one of the first lines of protection is the outer shell. He said that the outer shell once it is made starts the slow delamination process. Upon impact that process is accelerated and is one of the primary means of distributing the impact over a large surface area to try and prevent pin point loads to the head. The styrofoam is another layer to that protection, but is is more for slowing down the rate of energy transfered to the brain.</p><p></p><p>He said, if you ever drop the helmet, even if it falls from the bike to the ground, it is junk. It may not show any damage, but the delamination process has been accelerated beyond what it naturally does over time. He said it would no longer perform as designed. He said above all, no matter what helmet you buy, make sure it is properly fit and worn.</p><p></p><p>I ran into him again at the motorcycle show a couple of years ago when I was considering a flip up style helmet. I asked him if Arai made a filp up style helmet. He said they do not and will not because they have not been able to make a helmet that can take the impacts without too much deforming and stay closed. The impacts that get transferred to the brain were to high in their opinion.</p><p></p><p>Again this is all from memory.</p></blockquote><p></p>
[QUOTE="Auburn, post: 804324, member: 5661"] This is from my memory of a convesation with an Arai tech at the race track back in '97 as he serviced my helmet and checked it over and installed a new visor. I asked him how a helmet works to protect your head. He said one of the first lines of protection is the outer shell. He said that the outer shell once it is made starts the slow delamination process. Upon impact that process is accelerated and is one of the primary means of distributing the impact over a large surface area to try and prevent pin point loads to the head. The styrofoam is another layer to that protection, but is is more for slowing down the rate of energy transfered to the brain. He said, if you ever drop the helmet, even if it falls from the bike to the ground, it is junk. It may not show any damage, but the delamination process has been accelerated beyond what it naturally does over time. He said it would no longer perform as designed. He said above all, no matter what helmet you buy, make sure it is properly fit and worn. I ran into him again at the motorcycle show a couple of years ago when I was considering a flip up style helmet. I asked him if Arai made a filp up style helmet. He said they do not and will not because they have not been able to make a helmet that can take the impacts without too much deforming and stay closed. The impacts that get transferred to the brain were to high in their opinion. Again this is all from memory. [/QUOTE]
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