----- Original Message ----- From: "Steve Pye" To: DSN_klr650@yahoogroups.com> Sent: Tuesday, August 14, 2001 8:31 AM Subject: Re: [DSN_klr650] Helmets > > -----Original Message----- > From: king9004@... > To: DSN_klr650@yahoogroups.com > Date: Tuesday, August 14, 2001 1:03 AM > > > > >Last one I had was an HJC - FG, That sucker busted on impact, company said > >it was suppose too. That shows you where they stand. > > Jim Wilson in Tenn. > > I seem to recall reading something years ago that stated all helmets should > do that. Something about releasing or absorbing the kinetic energy of a > crash by breaking instead of passing that energy on to your neck or skull, > thus breaking them. I don't know the physics involved as I'm no engineer but > it sounds right. Something like the way they build modern cars with crush > zones to absorb impacts without hurting the "soft" parts inside? > Any engineers want to comment on this ? > cheers, > Steve > A11 > > > Visit the KLR650 archives at > http://www.listquest.com/lq/search.html?ln=klr650 > > Post message: DSN_klr650@yahoogroups.com > Subscribe: DSN_klr650-subscribe@yahoogroups.com > Unsubscribe: DSN_klr650-unsubscribe@yahoogroups.com > List owner: DSN_klr650-owner@yahoogroups.com > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >
[dsn_klr650] motorcycle magic act - not good thing
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- Posts: 114
- Joined: Thu Aug 09, 2001 10:38 pm
helmets
I am not an engineer however I have had three helmets broken on
impact and my son has had one broken.we have not had a head injury. I think
they did there job. they expended the impact energy on breaking the helmet
instead of my head . I haven't read the fine print in a long time but in
the past it said to have it examined internally (send back to factory ) if
it sustained a hard impact ,even if it showed no external damage because it
might have damaged the crush zone in the core. That was on the instruction
sheet for my bell helmet bought in the mid sixty's.It also happens to be the
first one I owned and broke. Before then I didn't wear a helmet .Having
personal experience as to how well they protect your head in a accident I
never go anywhere without one. to me having to buy a new helmet is
inexpensive compared to a hospital emergency room . I think you should be
glad that it busted ,think of what it took to break it. I see Tennessee all
the time I know how many large rocks there are on the side of the road .Look
on the bright side you get to pick out a new helmet with all the latest
technology and colors . My current helmet is old but good but only came in
three colors black ,white ,and red.Times have changed .
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- Joined: Mon Jul 09, 2001 7:16 pm
helmets
The one shot helmet theory makes good sense re: impact absorbtion vs. dispersion and the thought that you wouldn't want a whole bunch of that energy transferred to the ol' brain housing group - but what about the second impact in the same wreck - i.e., street to curb to ditch, etc. If the helmet no longer has any structure at all that next bounce is going to hurt! Watching some of the old Evel Knievel wrecks in slo mo demonstrates the need for the multiple impact helmet. I agree that the helmet should be replaced immediately after the first wreck - but it should not lose all its integrity on the first hop. Dan Barney> why would you reuse a helmet? I'd rather lose a finger or 2 than my > head! > > Brett. >
> > -- In DSN_klr650@y..., "Steve Pye" wrote: > > > > -----Original Message----- > > From: king9004@a... > > To: DSN_klr650@y... > > Date: Tuesday, August 14, 2001 1:03 AM > > > > > > > > >Last one I had was an HJC - FG, That sucker busted on impact, > company said > > >it was suppose too. That shows you where they stand. > > > Jim Wilson in Tenn. > > > > I seem to recall reading something years ago that stated all > helmets should > > do that. Something about releasing or absorbing the kinetic energy > of a > > crash by breaking instead of passing that energy on to your neck or > skull, > > thus breaking them. I don't know the physics involved as I'm no > engineer but > > it sounds right. Something like the way they build modern cars with > crush > > zones to absorb impacts without hurting the "soft" parts inside? > > Any engineers want to comment on this ? > > cheers, > > Steve > > A11 > > > Visit the KLR650 archives at > http://www.listquest.com/lq/search.html?ln=klr650 > > Post message: DSN_klr650@yahoogroups.com > Subscribe: DSN_klr650-subscribe@yahoogroups.com > Unsubscribe: DSN_klr650-unsubscribe@yahoogroups.com > List owner: DSN_klr650-owner@yahoogroups.com > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >
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- Joined: Tue Jun 19, 2001 5:55 am
helmets
The helmets will fail to protect you if impacted repeatably in the
same spot. usually when you crash, you impact in several different
spots on the helmet. This is not to say that after your head hits the
ground after a crash you should strip your bean of the helmet cuz it
won't do any good anymore! One of my friends used his helmet to hold
his bike up near turn eleven at Road America doing close to 100.
Problem was it was still attached to his head!
--- In DSN_klr650@y..., "dnbv1" wrote: > > why would you reuse a helmet? I'd rather lose a finger or 2 than my > > head! > > > > Brett. > > > The one shot helmet theory makes good sense re: impact absorbtion vs. > dispersion and the thought that you wouldn't want a whole bunch of that > energy transferred to the ol' brain housing group - but what about the > second impact in the same wreck - i.e., street to curb to ditch, etc. If the > helmet no longer has any structure at all that next bounce is going to hurt! > Watching some of the old Evel Knievel wrecks in slo mo demonstrates the need > for the multiple impact helmet. > I agree that the helmet should be replaced immediately after the first > wreck - but it should not lose all its integrity on the first hop. > Dan Barney > > > > -- In DSN_klr650@y..., "Steve Pye" wrote: > > > > > > -----Original Message----- > > > From: king9004@a... > > > To: DSN_klr650@y... > > > Date: Tuesday, August 14, 2001 1:03 AM > > > > > > > > > > > > >Last one I had was an HJC - FG, That sucker busted on impact, > > company said > > > >it was suppose too. That shows you where they stand. > > > > Jim Wilson in Tenn. > > > > > > I seem to recall reading something years ago that stated all > > helmets should > > > do that. Something about releasing or absorbing the kinetic energy > > of a > > > crash by breaking instead of passing that energy on to your neck or > > skull, > > > thus breaking them. I don't know the physics involved as I'm no > > engineer but > > > it sounds right. Something like the way they build modern cars with > > crush > > > zones to absorb impacts without hurting the "soft" parts inside? > > > Any engineers want to comment on this ? > > > cheers, > > > Steve > > > A11 > > > > > > Visit the KLR650 archives at > > http://www.listquest.com/lq/search.html?ln=klr650 > > > > Post message: DSN_klr650@y... > > Subscribe: DSN_klr650-subscribe@y... > > Unsubscribe: DSN_klr650-unsubscribe@y... > > List owner: DSN_klr650-owner@y... > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > > >
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- Joined: Sat Jan 13, 2001 7:01 pm
helmets
http://www.bieffeamerica.com/index.htm
I know some people would say they wouldn't be caught wearing a Bieffe
so this email is not for you......it's for all the rest of you.
This is Bieffe's US headquarters' website,
Click on "GET IT", then click on "MOTO BLOW OUT"
There are some real deals to be had if you are not too picky about
color.
I tried one on at a dealer for size reference.
I have bought two helmets from this site and both are Snell 95 and DOT
and both were originally over $200 list. They currently have several
helmets with Snell 2000 ratings.
I hit ice 3 years ago and went down on pavement. I fractured my right
collar bone and hit my head hard on the right front. I was wearing a
Bieffe and I was fine. The helmet stood up as well as my previous
Shoei RF 200.
Just in case you did not know about this place.
Tom B
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- Posts: 3
- Joined: Tue Nov 13, 2001 10:52 am
helmets
Hey everyone,
I Just bought A 2000 klr 650. What type of helmet is better? Open like a dirt bike helmet or or closed with the clear thing like a street helmet? I bought A dirt helmet and a frind of mine siad bugs will still hit you.
Matthew
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- Joined: Thu Aug 16, 2001 8:18 am
helmets
Matthew,
A lot depends on where you ride. If most of your riding is on the
street, a full face helmet is probably best. They are definitely the
quietest and provide the most protection. Some guys like the flip-up
style like the Nolan 100 for convenience. They're nice, but aren't
meant to be ridden with the chin bar up, so keep that in mind.
If you ride mostly in the dirt, you might prefer a dirt bike helmet
and goggles. Goggle lenses are a lot cheaper to replace than helmet
faceshields and the off-road environment is tough on any plastic.
goggles will also keep more dust our of your eyes. I wear an Arai
Quantum (full-face) on the street and used to use my old Arai on dirt
rides until someone gave me a Suomy Fazer full-face, which I like
because it is very light.
When you shop for a helmet, try on various brands, as they are all
made for different head shapes. Some may be comfortable to you and
others won't be. Shoeis are good helmets, but they kill my forehead
after a couple of hours; I can wear my Arai all day with no problem.
A new helmet should fit very snugly on your head. It should pinch
your cheeks in some and you shouldn't be able to twist it much from
side-to-side or move it up and down. The pads will relax after a few
months, so snug is good. Some brands to investigate are AGV, Arai,
Bieffe, HJC, Nolan, Shoei, and Suomy.
Good luck!
Arden Kysely
A11 "Mr. K"
--- In DSN_klr650@y..., matrix1264@a... wrote: > Hey everyone, > I Just bought A 2000 klr 650. What type of helmet is better? Open like a dirt bike helmet or or closed with the clear thing like a street helmet? I bought A dirt helmet and a frind of mine siad bugs will still hit you. > Matthew
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- Joined: Tue Jul 03, 2001 1:55 am
helmets
dirt bike helmet or or closed with the clear thing like a street helmet? I bought A dirt helmet and a frind of mine siad bugs will still hit you. I have both a couple full-face helmets and a good Axo motocross helmet. I use both depending on which style of riding I plan to do. If I'm going to be cruising around town or out on the freeway the full-face is a no-brainer. It's more comfortable at speed, deflects bugs/rain/pedestrians, quieter, and allows the Chatterboxes to actually work up to a reasonable speed. If I'm going off-roading or for a reasonably short distance the motocross helmet is lighter, more open, flows air better and can collect bugs/rain/cats/dogs/kids. On the freeway it tends to have a high-pressure point right at the front of the nose where all the sand from passing trucks gets blown onto you. The solution is that Scott and a few others make a little plastic shield that attatches to the bottom of their goggles and further deflects this. It works quite well to keep the sand off and also keeps the rain from eventually blistering your nose. Come to think of it, it keeps your nose from turning into a serious cold-spot if the weather changes on you. If all else fails perhaps a pair of inexpensive helmets (one of each,) over a single expensive helmet might be the better solution for you as long as both meet all the current safety standards. -Myk> Hey everyone, > I Just bought A 2000 klr 650. What type of helmet is better? Open like a
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- Joined: Fri Oct 11, 2002 2:54 pm
helmets
I've got a mx helmet ( HJC ac-x1 ) and I've found it to kinda nice at
highway speeds and no louder then any other helmet I've owned.
The visor kinda botherd me at first for the reasons that it would
kinda spin my head off, but so far so good guess it's kinda hard to
break the rocks in my head, LOL.
But then I am probly crazy too,would probly explain why I install
siding on houses 30-40 feet high or worse being up on a 8/12 pitch
roof.
Going nuts
Russ from Canmore....... Ya A
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- Posts: 93
- Joined: Fri Oct 11, 2002 2:54 pm
helmets
O ya forgot to mention that the dealer even threw in one of those
thingies theat go inside the helmet and cover your nose and mouth.
Was actualy from another HJC model and doesn't fit this one to well,
Owell it was free.
The helmet was a bit pricey but well worth it.
Russ
- In DSN_klr650@y..., "Russell Dyck" wrote:
at> I've got a mx helmet ( HJC ac-x1 ) and I've found it to kinda nice
to> highway speeds and no louder then any other helmet I've owned. > The visor kinda botherd me at first for the reasons that it would > kinda spin my head off, but so far so good guess it's kinda hard
> break the rocks in my head, LOL. > But then I am probly crazy too,would probly explain why I install > siding on houses 30-40 feet high or worse being up on a 8/12 pitch > roof. > Going nuts > Russ from Canmore....... Ya A
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helmets
Has any one tried a Zeus 508 helmet?
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