Author Topic: Helmet confusion  (Read 9116 times)

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madMurphy

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on: May 08, 2010, 04:48:09 pm
I've spent the last few days looking into helmets and have reached a point where anything more I read just adds to my confusion.  I was initially considering between a Scorpion EXO-400 and 700 -- both are Snell-testing certified, which I understood subjected helmets to a more rigorous set of tests, demonstrating them to be more durable and, therefore, safer.  But as I looked at more expensive helmets, $300 and up, I stopped seeing Snell certifications mentioned in the product details.   I wondered if the more expensive helmets were really safer, or equally so and just more 'featured'? (inflatable cheek pads? i had a pair of sneakers like that in high school)  Paddling around on the Intertubes, I came across some mention that Snell tests place unrealistic demands on the equipment, particularly this piece:

http://www.motorcyclistonline.com/gearbox/motorcycle_helmet_review/index.html (kind of a long read, but worth it)

...which leads me to my next area of confusion: polycarbonate vs kevlar/fiberglass, particularly since the EXO-400 is made of the former and the 700 of the latter.  After reading about how much shock a 'hard' helmet transmits to the head as compared to a 'soft' helmet, I started doing some pro/con-ing on the two materials.  I've come across a lot of material that, taken alone, would lead me to believe that polycarbonate is cheap and to be avoided at all costs, and that kevlar is the equivalent of Frodo's mithril shirt for your head.

But, then I think of two things: one, in the afore-linked article, Dr. Hurt's saying "If they'd had a softer helmet they'd have been better off.", and a line from a post here by Vince: "I know that your buddy, the internet, and magazine writers know more than the scientists and engineers that actually make helmets, but this is my head I'm talking about."

In the above article, the EXO-400 did pretty well in their tests, but they rave about the Z1R ZRP-1.  The sub-$100 price of the latter helmet concerns me, but I'm not sure it should; the 400 is only $130.

So...I dunno.  I'm still leaning toward the EXO-400, and I'd like your opinions/preferences/experiences concerning helmets and price ranges.  I just wanna protect my noggin is all...
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dogbone

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Reply #1 on: May 08, 2010, 05:08:03 pm
#1 you are smart to wear the helmet . I have 3 helmets, all Snell rated. Comfort is more important. A full face I used motocrossing, hot,heavy,claustrophobic, but safe. an open face w/ bubble, my favorite, and a half shell,for stinkin hot days, I recommend buying local, fit & comfort are more important than a government rating    ;D
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ace.cafe

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Reply #2 on: May 08, 2010, 05:56:18 pm
It all comes down to the testing protocols, and how those tests might relate to the actual impacts that your particular incident might need.

Snell ratings have a high priority on penetration testing during high speed impact. So it may very well be the better helmet if you crash at high speed and your helmet impacts a sharp object. As motorcycles became faster, more emphasis was put on stiffness and penetration resistance of the shell.
However, the polycarbonate helmets at DOT ratings may do better in other cases, like when your helmet just hits the road at normal speeds because it flexes more and absorbs more of the shock than the  stiffer materials would, and so less g-forces are transmitted to your head.

In the end, you can't really know what will be best for the crash situation you might be in, until after it happens, so it's easy to look back and say what would have been best, but you can't predict it beforehand.

My particular bias is that I'd rather have a helmet that can flex and absorb some of the shock, so that less shock is transmitted to my head. IMO, that is a more important consideration to me than whether a spike is going to penetrate my helmet during a crash. I think the blunt impact is more likely, and so a helmet that absorbs shock during a blunt impact will be more likely to protect me better.
That's just my opinion, based on what I think is a most likely scenario in a typical crash.
Being that the ground  is always present anywhere you might crash, it is a very high likelihood that your helmet will hit the ground in a blunt force way. I think it's much less probable that you are going to crash into a spike. So, playing the odds, I'll take the flexible shell that absorbs some of the impact.
IMHO.

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boggy

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Reply #3 on: May 08, 2010, 06:12:38 pm
I think you would be fine with the 400, provided it fits you well and is comfortable.  With a DOT or  Snell rating you should feel pretty confident. 

Can't emphasize enough getting one that fits proper and feels good.  Do not make concessions on those two points or you will regret it.

I watched this interesting video on a helmet that had a "skin."  There was the helmet base, thena layer of gel, and then a skin that looked like a regular matt finish helmet.  The idea is that when your head hits something like, pavement, your head slides.  A common injury for falling is the helmet catching some friction and your neck twisting pretty violently.  Its a possible future tech for racing since they are generally flying at top speed on pretty controlled flat-tracks.

Check for that DOT or Snell rating... make sure it fits you perfectly... try not to think of the price because your brain is worth it.  I try everything on in the store and then find the best deal I can online so I don't have to worry about returning.  You can get those fancy Arai and Shoei lids for half of what they cost if you dig.
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The Garbone

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Reply #4 on: May 08, 2010, 06:34:48 pm
Buy something you will wear... I have a full face for colder weather and rain and a HCI 50 for hot weather..  I like the HCI because it has the goggle clip on it, even if I look like Muttley...

I would buy a Helmet locally so you can get one thats fits right.. I bought my HCI online and it took 2 tries to get the right size.. A real pain... Also, I bought my full face at the local Cycle Gear store and had a hinge break and they replaced it free at the store. 
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Lahti35

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Reply #5 on: May 08, 2010, 07:10:33 pm
I've spent the last few days looking into helmets and have reached a point where anything more I read just adds to my confusion.  I was initially considering between a Scorpion EXO-400 and 700 -- both are Snell-testing certified, which I understood subjected helmets to a more rigorous set of tests, demonstrating them to be more durable and, therefore, safer.  But as I looked at more expensive helmets, $300 and up, I stopped seeing Snell certifications mentioned in the product details.   I wondered if the more expensive helmets were really safer, or equally so and just more 'featured'? (inflatable cheek pads? i had a pair of sneakers like that in high school)  Paddling around on the Intertubes, I came across some mention that Snell tests place unrealistic demands on the equipment, particularly this piece:

http://www.motorcyclistonline.com/gearbox/motorcycle_helmet_review/index.html (kind of a long read, but worth it)

...which leads me to my next area of confusion: polycarbonate vs kevlar/fiberglass, particularly since the EXO-400 is made of the former and the 700 of the latter.  After reading about how much shock a 'hard' helmet transmits to the head as compared to a 'soft' helmet, I started doing some pro/con-ing on the two materials.  I've come across a lot of material that, taken alone, would lead me to believe that polycarbonate is cheap and to be avoided at all costs, and that kevlar is the equivalent of Frodo's mithril shirt for your head.

But, then I think of two things: one, in the afore-linked article, Dr. Hurt's saying "If they'd had a softer helmet they'd have been better off.", and a line from a post here by Vince: "I know that your buddy, the internet, and magazine writers know more than the scientists and engineers that actually make helmets, but this is my head I'm talking about."

In the above article, the EXO-400 did pretty well in their tests, but they rave about the Z1R ZRP-1.  The sub-$100 price of the latter helmet concerns me, but I'm not sure it should; the 400 is only $130.

So...I dunno.  I'm still leaning toward the EXO-400, and I'd like your opinions/preferences/experiences concerning helmets and price ranges.  I just wanna protect my noggin is all...

Have you been to a cycle store? Stupid question i know but i was really confused myself when i bought helmet #1. Cruised the net trying to figure out this and that and then finally just went down to the local store after work and they got me fixed up.
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Anon

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Reply #6 on: May 08, 2010, 07:17:17 pm
In the above article, the EXO-400 did pretty well in their tests, but they rave about the Z1R ZRP-1.  The sub-$100 price of the latter helmet concerns me, but I'm not sure it should; the 400 is only $130.

So...I dunno.  I'm still leaning toward the EXO-400, and I'd like your opinions/preferences/experiences concerning helmets and price ranges.  I just wanna protect my noggin is all...

I have a Z1R ZRP-1 and it was that test comparison that led me to check it out.  I would definitely try in person though-  it has a slightly different shape internally than a lot of other helmets I tried.  It fits me well, but apparently is not too comfortable for some folks.  It's pretty light for a helmet despite it having what I consider a somewhat large shell size and it is also pretty quiet.  It doesn't have a fancy visor mechanism or much ventilation, but that's ok for me as I mostly just use it in the winter and for foul weather.

Most of the time, however, I'm in either my HCI50 retro helf helmet or a Fulmer V2 sparkly 3/4 helmet with my Jeantet aviator goggles.  I just like them better.  I wish Fuler made a full face styled just like the V2 3/4 helmet.  I hate how "power rangers" most full face helmets are!

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madMurphy

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Reply #7 on: May 08, 2010, 08:09:57 pm
Quote
Can't emphasize enough getting one that fits proper and feels good.
I was at a cycle store a few days ago and tried on an EXO-400, among other things.  I liked the fit and it was nice and snug.  I think that's what I'm gonna go with.

Quote
try not to think of the price because your brain is worth it
Yeah, I don't mind spending money on head protection -- I DO use what's in there, from time to time, I swear -- but I wanted to avoid making a mistake with a helmet that sounded great but was cheap.

Thanks for your help everyone.  I'll either be placing an order or heading out to the store sometime soon.
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Kevin Mahoney

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Reply #8 on: May 09, 2010, 05:41:34 am
I was in a helmet factory in Italy a couple of years ago. When they were forming the inside Styrofoam like inner liners they used different colors of material in different areas of the inner shell. Each color had different properties. When the shell was finished they had very clear evidence that the shell was made correctly. They had different specs for different countries and specs. Very interesting.
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jest2dogs

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Reply #9 on: May 15, 2010, 06:16:46 am
I've had 3 Bells, a Shoei, a Simpson, a Rider ($100 Snell!), a Nitro , a HCI 50, a few "no name" brands and my Arai.

Did I mention Arai? It is the smallest helmet I have ever owned. The tightest helmet I have ever owned. And after "fitment" (using a round object to compress the foam around my phrenological lumps) the best fitting helmet I have ever worn. It's expensive but it's my head. I got mine fitted at the Int. Bike Show by the area rep. He sure knew what he was talking about. I thought I wore a size Large or, at the least, a Medium. My Arai is a Small!

Did I mention Arai?
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UncleErnie

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Reply #10 on: May 15, 2010, 01:03:50 pm
It is my understanding that the Snaell rating is biased towards car use like racing, where there is going to be a better chance of something penetrating your helmet.  On a motorcycle, you're mostly going to slide and bounce. 
In any even, if you live in a state that requires helmet use, they look for a DOT sticker- and that's all they care about.

Assuming the helmet has a DOT sticker, you're biggest concern is FIT.  If something is not quite right, 50 miles down the road you will have fantasies about how to kill yourself.  The slightest intrusion on your head turns to torture after a while.

Helmets tend to have different shapes like round vs egg.  I have an oval -or egg shaped- head, so round helmets press too much on my forehead.  Some helmets will eat your ears.  If this is your first helmet, bring a magazine and wear a potential helmet around the store until they kick you out.  It's your head and money.   

Mostly, the mosre expensive helmets offer options like different thicknesses of face padding and ease of removing the face shield.  You pay for options and advertising.  If a $100 helmet FEELS good- get it.


BTW- never use a paper product to clean your visor,  There may be very small wood chips that will scratch.  Always use a micro-fiber cloth or cotton.
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single

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Reply #11 on: May 15, 2010, 02:33:00 pm
I only wear a helmet 'cause of laws.My"helmet" is nothing more than a plastic cap.Arthur-Itis in neck provides a gradual pressure like feeling ending in a loud(to me) snap accompanied by a lightening bolt of pain,from trying to hold my head up with a real helmet on.When the manufacturers come out with a full face with a neck support to hold it up,I will get one.


Blue Ridge Wheeltor

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Reply #12 on: May 15, 2010, 02:51:08 pm
Uncle Egg Head, I like it. :D
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ace.cafe

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Reply #13 on: May 15, 2010, 03:33:35 pm
I find it interesting to note that both Snell and DOT helmet ratings for "g-shock" forces transmitted to the head, are high enough to create Level 6 brain trauma.
Level 6 brain trauma is also known as "fatal".
Even Level 3 brain trauma can result in permanent damage of varying types and severity.

Shock ratings on both Snell and DOT helmets are above 250g.
Anything over 250g to the head is considered to result in Level 6 injury.
Level 3 is 150g, which is normally a survivable tramua and most helmets don't even get close to that. There's on helmet that I know about, which is not DOT or Snell rated, but received a 966 European rating, and it tested at 150g shock in the impact test. That helmet has been discontinued, believe it or not, and it was the Cromwell Spitfire with the stainless steel shell. It is also sold as the Ducati Sport helmet. Same helmet with Ducati decals on it.
Apparently, the stainless steel shell acted like a "crush zone" in car construction, and much of the shock was absorbed in crushing the steel shell, which reduced the shock levels to the head.
It was a fairly expensive helmet at over $400, but  there are more expensive helmets than that out there.
Not sure why they discontinued it, but maybe it just wasn't selling.
It looked like a nice helmet to me, with nice retro style and good protection.
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Anon

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Reply #14 on: May 15, 2010, 04:07:28 pm
The Z1R ZRP-1 (also called the Strike) averaged about 150 g in the Motorcyclist Online test.  I also cost less than $100 new.  I have one, and it's what I wear when I use a full face.  It's not particularly fancy as far as vents etc and does have an internal head shape that may not be comfortable for everyone (ok for me - I have a weird head).  I love the Cromwell Spitfire.  That helmet has some style!

Eamon
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