cross-posted from: https://sh.itjust.works/post/26471848
this post was submitted on 11 Oct 2024
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But they're made of the same material so it shouldn't make a difference. They also didn't hit the foam with a hammer in the study, by the way.
To the point of FortNine's accuracy in the figures, Ryan says himself that he's not aware of a proper study performed on used motorcycle helmets and he has his own personal formula, so... reasoned but not a source of scientific truth.
They are not designed to protect you against the same amount of force as a motorcycle helmet. That study just proves that expired bicycle helmets are still good for bicycle accidents, not motorcycle accidents. I rest my case.
You rest your case? You haven't presented any real evidence in support of it.
You are free to throw your helmet away every couple years if you want to.