Helmet and crashing question - Snowboarding Forum - Snowboard Enthusiast Forums
SnowboardingForum.com is the premier Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-12-2007, 09:50 PM   #1 (permalink)
Turbomarco
Guest
 
Posts: n/a
Question Helmet and crashing question

I've been told that if you crash pretty hard once on a helmet, you're supposed to replace it because the styrofoam gets compacted and is ineffective for future impacts. Its also called, "invisible damage." I crashed twice on mine, hitting the back of my head both times, but I was never knocked unconscious. Do you guys normally replace yours after a few crashes?
  Reply With Quote
Sponsored Links
Advertisement
 
Old 12-12-2007, 10:14 PM   #2 (permalink)
Member
 
SCZ71's Avatar
 
Join Date: Nov 2007
Location: Upstate SC
Posts: 71
Default

The styrofoam that is in these helmets should not stay compressed. It should bounce back, as its not actually getting really compressed. The main thing is that the looseness of the particles in the styrofoam (the reason its so light also)dissipate the energy from the blow. Kinda absorb alot of the energy from the impact. If you bite it hard enough to permanently damage the helmet you would be messed up pretty bad. I wouldn't worry about replacing it unless it had visible damage (cracks, etc).
SCZ71 is offline   Reply With Quote
Old 12-12-2007, 10:26 PM   #3 (permalink)
Senior Member
 
landonk5's Avatar
 
Join Date: Aug 2007
Location: WALNUT, CA
Posts: 351
Default

most helmet brands, pro-tec i know forsure, and probably giro and red,
have multi-impact absorbers, which is what it sounds like. supposedly,
regular helmets are single impact, and should be replaced because of the
"invisible damage" done after the first impact. these helmet brands
design their helmets so that the stuff inside bounces back and returns
to its normal shape after impact, so you can hit it multiple times.
__________________
no.
landonk5 is offline   Reply With Quote
Old 12-13-2007, 04:34 AM   #4 (permalink)
Samyaksambuddhas
 
PaoloSmythe's Avatar
 
Join Date: Aug 2007
Location: Only British blaady Columbia!!!
Posts: 4,622
Default

i disagree entirely.

smack your melon hard, and the foam as rightly said cushions the impact of your skull against the helmet's hard outer shell.

few things if anything are perfectly elastic and so the capacity for this absorption is reduced following a single hit.

of course it is up to you to quatify the severity of an impact, and thus the compression of the foam, and thus the need to replace yer lid.

my train of thought is just personal opinion and perhaps biased from riding motorbikes... but if i were to whack my head, i would buy a new helmet. and a good enuff whack to the head would not necessitate a concusion or anything remotely as severe.

but as said, this is just my opinion, so take it for what it is worth.
__________________
Just coz you don't understand it
Doesn't mean it makes no sense!
PaoloSmythe is offline   Reply With Quote
Old 12-13-2007, 08:22 AM   #5 (permalink)
Moderator
 
boarderaholic's Avatar
 
Join Date: Aug 2007
Location: Edmonton
Posts: 2,715
Default

I agree with Paolo, you don't need a concussing inducing helmet to replace your lid.
boarderaholic is offline   Reply With Quote
Old 12-13-2007, 08:37 AM   #6 (permalink)
Senior Member
 
romesaz's Avatar
 
Join Date: Nov 2007
Location: Toronto, Canada
Posts: 351
Default

Quote:
Originally Posted by PaoloSmythe
i disagree entirely.

smack your melon hard, and the foam as rightly said cushions the impact of your skull against the helmet's hard outer shell.

few things if anything are perfectly elastic and so the capacity for this absorption is reduced following a single hit.

of course it is up to you to quatify the severity of an impact, and thus the compression of the foam, and thus the need to replace yer lid.

my train of thought is just personal opinion and perhaps biased from riding motorbikes... but if i were to whack my head, i would buy a new helmet. and a good enuff whack to the head would not necessitate a concusion or anything remotely as severe.

but as said, this is just my opinion, so take it for what it is worth.

Paolo, correct me if I'm wrong, but when it comes to motor-bike helmets, even due something as slight as just dropping your helmet accidentally it is recommended to replace your helmet.
That may be just something I've heard though, I don't ride bikes, so I can't speak from personal experience.

I agree with Paolo and boarderholic though.
romesaz is offline   Reply With Quote
Old 12-13-2007, 09:00 AM   #7 (permalink)
Samyaksambuddhas
 
PaoloSmythe's Avatar
 
Join Date: Aug 2007
Location: Only British blaady Columbia!!!
Posts: 4,622
Default

yep, just a drop of your melon case and its time to buy a new one.

whilst that does (even to me) sound extreme, when considering the potential energetic factors resulting from a bike crash, it is worth heading.

afterall, buttered toast always lands buttered side down!

murphy's law (aka sod's law) makes it better to err on the side of caution
__________________
Just coz you don't understand it
Doesn't mean it makes no sense!
PaoloSmythe is offline   Reply With Quote
Old 12-13-2007, 11:48 AM   #8 (permalink)
Turbomarco
Guest
 
Posts: n/a
Default

Damn, I think I hit pretty hard. I might end up buying a new one. Sad part is, that was the first time I rode with it and I already have to replace it. Oh well, I can't replace my skull, so I'll dish out another 100
  Reply With Quote
Old 12-13-2007, 12:29 PM   #9 (permalink)
N~R~G
Guest
 
Posts: n/a
Default

they say the same thing about car bumpers...if you have any kind of impact to it you're supposed to change out the entire bumper because the damage to the foam. at least on the new cars.


i don't know...could just be another consumerism trick.

maybe send the question in to myth busters...?
  Reply With Quote
Old 12-13-2007, 12:36 PM   #10 (permalink)
Veteran Member
 
killclimbz's Avatar
 
Join Date: Aug 2007
Location: Front Range
Posts: 10,824
Default

Some helmets are rated for multiple impacts and some are not. Generally if the foam of your helmet looks like styrofoam, it's probably a "crush" design. The foam crushes on the impact to absorb energy. That is a one and done helmet. If the foam is crushed it's done. One and done helmets tend to be a lot lighter.
Others like many protec models are multiple impact rated. So you bounce your head off of a groomer and it's probably fine to do again. Opposite of the crush helmets a multiple impact helmet tends to be a heavier design. Noticably heavier.

No matter what helmet you use, if it takes a major impact that helmet should be retired. The multiple use ones can only take so much. If you take a hard impact and wake up down at ski patrol, it's probably time to get a new helmet.

So what helmet were you sporting?
killclimbz is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:32 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
VerticalSports
Baseball Forum Golf Forum Boxing Forum Snowmobile Forum
Basketball Forum Soccer Forum MMA Forum PWC Forum
Football Forum Cricket Forum Wrestling Forum ATV Forum
Hockey Forum Volleyball Forum Paintball Forum Snowboarding Forum
Tennis Forum Rugby Forums Lacrosse Forum Skiing Forums