Koroyd

karlsmith808
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karlsmith808
I have seen it in the new Thor and Klim helmets, but is it really worth the high price tag, it just seems like it's a bunch of straws hot glued together, or is it more than that. Anybody have any experience, I'm thinking of getting one for my brother (who's been looking at both the Klim and Thor helmets) as a gift, he does enduro/ hare scramble/ trail riding and he sees a lot of people like the FMF/RPM/KTM team wearing the Klim helmet. Just looking for some guidance on what to buy him.
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robertkenneth 5/18/2021 4:58pm
5/18/2021 4:58pm
It's ok, the Koroyd seems cheap compared to eps. I wouldn't spend $500+ on plastic straws.
Bacon_n_Egg'r
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Bacon_n_Egg'r 5/18/2021 9:08pm
5/18/2021 9:08pm
Koroyd or similar has been used in some cycling helmets, namely from Smith and Bontrager (they call it WaveCel). In general it has not tested out as well as EPS foam with anti-rotation tech like MIPS. There is currently a lawsuit against Trek (parent of Bontrager) because it made massive claims about WaveCel preventing concussions, something no other helmet manufacturer has ever marketed (for obvious legal reasons).

There's a biomedical engineering group at Virginia Tech doing a lot of helmet testing for cycling, hockey and football.

https://www.helmet.beam.vt.edu/index.html

https://www.helmet.beam.vt.edu/bicycle-helmet-ratings.html

FWIW, right around this time last year I was totally KOed and had the worst concussion of my 52 years wearing a 5-star rated cycling helmet (Giro Synthe w/ MIPS), when an off-leash dog cleaned me out on a gravel trail.

It would be really cool for the moto industry to have 100% independent testing of helmets.
karlsmith808
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karlsmith808 5/19/2021 4:38am
5/19/2021 4:38am
Bacon_n_Egg'r wrote:
Koroyd or similar has been used in some cycling helmets, namely from Smith and Bontrager (they call it WaveCel). In general it has not tested out...
Koroyd or similar has been used in some cycling helmets, namely from Smith and Bontrager (they call it WaveCel). In general it has not tested out as well as EPS foam with anti-rotation tech like MIPS. There is currently a lawsuit against Trek (parent of Bontrager) because it made massive claims about WaveCel preventing concussions, something no other helmet manufacturer has ever marketed (for obvious legal reasons).

There's a biomedical engineering group at Virginia Tech doing a lot of helmet testing for cycling, hockey and football.

https://www.helmet.beam.vt.edu/index.html

https://www.helmet.beam.vt.edu/bicycle-helmet-ratings.html

FWIW, right around this time last year I was totally KOed and had the worst concussion of my 52 years wearing a 5-star rated cycling helmet (Giro Synthe w/ MIPS), when an off-leash dog cleaned me out on a gravel trail.

It would be really cool for the moto industry to have 100% independent testing of helmets.
Yeah, It would be cool for all helmets to do independent testing, I can see why Koroyd would be good for biking since it's lightweight and breathable.
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karlsmith808
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karlsmith808 5/19/2021 2:15pm
5/19/2021 2:15pm
I think I stick with eps for him, there's a reason why companies have used it forever.
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willbilly
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willbilly 5/19/2021 4:55pm
5/19/2021 4:55pm
I have the Klim Korioyd. Best ventilated helmet. The “straws” crush and don’t rebound like EPS. DOT approved.
willbilly
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willbilly 5/19/2021 4:57pm
5/19/2021 4:57pm
I have the Klim Korioyd. Best ventilated helmet. The “straws” crush and don’t rebound like EPS. DOT approved.
karlsmith808
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karlsmith808 5/20/2021 5:10am
5/20/2021 5:10am Edited Date/Time 5/20/2021 5:30am
willbilly wrote:
I have the Klim Korioyd. Best ventilated helmet. The “straws” crush and don’t rebound like EPS. DOT approved.
They don't rebound, oh that's nice. Does anybody else have any other experiences?
Spooner
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Spooner 5/20/2021 6:04am
5/20/2021 6:04am
willbilly wrote:
I have the Klim Korioyd. Best ventilated helmet. The “straws” crush and don’t rebound like EPS. DOT approved.
EPS doesn’t rebound either.
karlsmith808
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karlsmith808 5/20/2021 6:31am
5/20/2021 6:31am
willbilly wrote:
I have the Klim Korioyd. Best ventilated helmet. The “straws” crush and don’t rebound like EPS. DOT approved.
Spooner wrote:
EPS doesn’t rebound either.
So what you're telling me is that it's just a gimmick.
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Spooner 5/20/2021 6:48am
5/20/2021 6:48am
karlsmith808 wrote:
So what you're telling me is that it's just a gimmick.
Not at all. Both materials will compress with impact but do not rebound back to the original shape.
karlsmith808
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karlsmith808 5/20/2021 6:56am
5/20/2021 6:56am
karlsmith808 wrote:
So what you're telling me is that it's just a gimmick.
Spooner wrote:
Not at all. Both materials will compress with impact but do not rebound back to the original shape.
Oh okay, never mind, I thought we were talking about the head rebounding off of the compressed material.
karlsmith808
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karlsmith808 5/20/2021 7:57am
5/20/2021 7:57am
What are people's experiences with the quality of these two helmets?
msp332
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msp332 5/20/2021 9:38am
5/20/2021 9:38am
Show me the data.

If a helmet meets the new ECE 22.06 certification with the "low speed" impact requirement, I'll consider it. As of today, these Koroyd helmets don't. Helmets will change in response to the new standard.

One helmet manufacturer has 3 models that are ECE 22.06 certified (since September 2020). The same manufacturer is also the only one who publishes independent test data for all their helmets: Leatt.

I hope new technology makes helmets safer, but it's just advertising without the certification.
karlsmith808
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karlsmith808 5/20/2021 10:44am
5/20/2021 10:44am
msp332 wrote:
Show me the data. If a helmet meets the new ECE 22.06 certification with the "low speed" impact requirement, I'll consider it. As of today, these...
Show me the data.

If a helmet meets the new ECE 22.06 certification with the "low speed" impact requirement, I'll consider it. As of today, these Koroyd helmets don't. Helmets will change in response to the new standard.

One helmet manufacturer has 3 models that are ECE 22.06 certified (since September 2020). The same manufacturer is also the only one who publishes independent test data for all their helmets: Leatt.

I hope new technology makes helmets safer, but it's just advertising without the certification.
I noticed that It seems like Leatt got, "Early Access" to that new standard.
msp332
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msp332 5/20/2021 4:28pm
5/20/2021 4:28pm Edited Date/Time 5/20/2021 4:33pm
karlsmith808 wrote:
I noticed that It seems like Leatt got, "Early Access" to that new standard.
ECE 22.06 was published in September 2019, and voted to become law in the EU in March 2020 (effective 2023, now delayed to 2024). I have no idea how quickly a helmet can be designed, manufactured, and certified, but Leatt certified over 8 months ago.

If anyone, including manufacturers or helmet technology companies, thinks that a standard isn't good enough- then change the standard. Or develop a new standard for everyone to follow. Claiming a new technology or construction method is superior without the engineering test data and medical direction behind it is just asking us to buy the Emperor's New Clothes.
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