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Blowing the lid off helmet performance

PostPosted: Wed Jul 06, 2005 12:17 pm
by aardvark

PostPosted: Wed Jul 06, 2005 12:55 pm
by Smitty
wow

I learnt a bit more about helmets after that...........
good and bad

good post Jase

PostPosted: Wed Jul 06, 2005 6:57 pm
by Aussie Ninja
Mabye my cheap $190 agv is better than I thought. :shock:

PostPosted: Wed Jul 06, 2005 8:06 pm
by Smitty
Aussie Ninja wrote:Mabye my cheap $190 agv is better than I thought. :shock:

and i am happy with my AGV 'rossi' replica....

PostPosted: Wed Jul 06, 2005 8:21 pm
by ttc
if only it was that easy..

PostPosted: Wed Jul 06, 2005 11:54 pm
by diesel
just goes to show that more expensive and more advanced doesn't mean better.

i have no idea about the standards in oz, but i think upper and lower limits on the stiffnes of a helmet would be a good idea after reading that.

PostPosted: Thu Jul 07, 2005 12:26 am
by Felix
Thanks. I think I'll walk now...

PostPosted: Thu Jul 07, 2005 8:48 am
by Glen
Good article. Dispels a lot of the myths about spending buckets of money equalling better protection.

The other good point and something we impress upon learners regularly is that it really doesn't matter what speed your doing, your head is generally going to hit the ground with the same impact at 10km/h or 200km/h. Therefore no matter how slow you are going, wear your helmet.

PostPosted: Thu Jul 07, 2005 10:10 am
by RG
aardvark, awesome find there.

So what I've been standing by all these years is true - A more expensive helmet doesn't mean it offers more protection.

PostPosted: Thu Jul 07, 2005 10:18 am
by MickLC
Don't forget they are referring to American helmets, and American standards. They say themselves that the manufacturers make different helmets for different markets, and I know that my helmet doesn't have a SNELL sticker in it which seemed to be their biggest issue in the article.

PostPosted: Thu Jul 07, 2005 12:58 pm
by Felix
Probably the most important point, which is easy to overlook in the whole SNELL vs DOT debate, is that all modern helmets transfer less energy to the wearer than helmets of 10 year vintage. In other words they have improved crash survivability over time, which ever helmet you buy.

But generally this is no different to the old "my old car is better than those new tin boxes - in an accident my car will hardly get a dent, those new ones would be a write off". Basic physics tells us that if the car doesn't absorb energy by bending and twisting metal, then that energy is transferred to something that will. This is often the occupants. I bought my car expecting that it will be written off in a serious accident. As long as I survive, who cares about the car?

It seems as if the SNELL test seems a bit pre-occupied with how the helmet survives, rather than the wearer. It is a pity that they aren't welcomming of the critique, and don't appear to want to expand on the points raised or in fact do their own research and testing to improve outcomes for helmet wearers.

PostPosted: Wed Sep 07, 2005 1:25 pm
by Shifty
Must have missed this originally, mods feel free to delete my repost :)

The snell theory seems rooted to the fact that you are safe at 299g but will die at 301g. Rather flawed if you ask me...

PostPosted: Wed Sep 07, 2005 5:34 pm
by aardvark
Shifty wrote:Must have missed this originally, mods feel free to delete my repost :)


OK :lol: