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Trek comes out with new helmet material, says old helmets are rubbish

Posted: 19 Mar 2019, 9:55pm
by thelawnet
:roll:

https://wavecel.trekbikes.com

The specific claim:

"This graphic depicts the probability of AIS 2 Injury (BrIC) at a 6.2 M/S 45° angled impact, comparing standard foam helmets and the same helmets with WaveCel inserts."

And the probability given is:

Standard foam: 69%
Wavecel 1%

This seems a rather disingenuous claim in that it is not claiming to prevent 99% of concussions, only at at their specific and arbitrary tested parameters it

Fairly obviously like any other helmet it will be completely useless in many scenarios.

They have a study which says

http://trek.scene7.com/is/content/TrekB ... esting.pdf

"In vertical drop tests at 4.8 m/s onto a 30° anvil, their cellular structure
reduced linear acceleration by 14%, rotational acceleration by 34%,
and neck loading by up to 32% compared to a traditional EPS bicycle
helmet. In combination, these findings suggest that elastic suspension of
a properly designed cellular structure has the potential to reduce ro-
tational acceleration and brain injury risk. These impact performance
gains of CELL group helmets came at a cost of a 36% increase in helmet
weight compared to CONTROL group helmets. Since helmet weight is
critical for consumer adoption, integration of CELL technology into a
consumer product should focus on minimizing the associated weight
increase. "

'Heavier helmet more effective' doesn't seem that surprising to me.....

Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 19 Mar 2019, 10:03pm
by thelawnet
BTW the costs:

'Bontrager Charge WaveCel Commuter is a fashion-forward helmet that earns top marks in style and safety. ' £130
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'Bontrager Specter WaveCel offers the best in versatility and comfort for everyday rides on roads, trails, gravel and more. ' £130
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'Bontrager Blaze WaveCel offers the best in performance and protection on any trail, from flowy singletrack to gnarly downhill' £200

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'Bontrager XXX WaveCel delivers high-performance protection and the best in aerodynamics and comfort. ' £200
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Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 20 Mar 2019, 7:46pm
by drossall
But there can't be much room for improvement, because existing helmets are so effective?

Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 21 Mar 2019, 5:03pm
by maviczap
It's all well for stopping external injury and bruising, but it won't stop the brain inside the skull from being flung around inside by the G forces during any big crash, which causes concussion.
So maybe it's an improvement, or marketing speil?

Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 21 Mar 2019, 6:20pm
by Steady rider
Looks to be marginally less safe with a likely higher accident rate but potentially more protective in rotational terms.

Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 22 Mar 2019, 2:15am
by thelawnet
Now MIPS, who license a technology with similar anti-rotational goals, are saying that they can't reproduce these results

https://road.cc/content/tech-news/25804 ... ety-claims

Re: Trek comes out with new helmet material, says old helmets are rubbish

Posted: 22 Mar 2019, 6:27am
by landsurfer
The world of the "Emperors new clothes" and helmets are always in the same orbit ....