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The lid don't bounce!!

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flamegrape
Nitrous Nuisance



Joined: 28 Apr 2010
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PostPosted: 11:18 - 27 Oct 2010    Post subject: The lid don't bounce!! Reply with quote

This morning I was leaving for work and I dropped my helmet. It slipped from my hand onto a tiled floor with a horrible heart-wrenching *smack*.

I'm worried it's now no good to use?? There was no force throwing it downward and it fell from about my man-helmet height. Should I now be filing this under 'B' or do you think it'll be OK to use??

Thanks guys! Sad
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skithepowder
Borekit Bruiser



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PostPosted: 11:28 - 27 Oct 2010    Post subject: Reply with quote

It's probably compromised, doesn't take much, once the polystyrene is compressed even a bit, it loses it's protection value.

What kind of helmet is it? If it's an expensive lid or a shoei/arai try taking it to your local dealer and they can have a closer look at it maybe. I was told by a shoei dealer not long ago that they can tell if it's compromised on the newer shoei helmets if they take the liner out az they "paint it" or something so they can tell if it's been compressed. I can't remember the details.

Do you have it insured? Home insurance if not special helmets and leathers insurance may well cover it.
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flamegrape
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PostPosted: 11:34 - 27 Oct 2010    Post subject: Reply with quote

Thanks!

It's a Shark S900 (Fost Lumi). There is no signs of physical damage to it - on the outside at least - but obviously this doesn't mean there is no "interior" damage.

I will see about getting it to a dealer. I paid £250 for it. I'd have to see about House Insurance as I don't have lid'n'leather cover Sad
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Raffles
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PostPosted: 11:38 - 27 Oct 2010    Post subject: Reply with quote

Only you can decide what you want to do. Personally, I do not buy into all of this stuff about having to bin a helmet after even just a minor bump. If they were that fragile then what protection would they offer to you if you were bouncing down the carriageway bumping your head several times in the process?
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flamegrape
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PostPosted: 11:42 - 27 Oct 2010    Post subject: Reply with quote

Raffles wrote:
Only you can decide what you want to do. Personally, I do not buy into all of this stuff about having to bin a helmet after even just a minor bump. If they were that fragile then what protection would they offer to you if you were bouncing down the carriageway bumping your head several times in the process?


Good point. I am reluctant to replace it - thinking along the lines of most lids aren't well wrapped up in the boxes they come in and you don't ever know if they're bounced of dropped in transit/store rooms or by the dealers before you buy it.

On the other hand though, I want to be safe, obviously. :\
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skithepowder
Borekit Bruiser



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PostPosted: 11:54 - 27 Oct 2010    Post subject: Reply with quote

You could always get lid and leather insurance, you never know you might have an accident in a week or two Wink
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Minty
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PostPosted: 11:57 - 27 Oct 2010    Post subject: Reply with quote

I would go with probability, personally.

If the inner has some minor damage then what is the probability of it receiving another impact, whilst attached to my head, in that same spot that would be sufficient to cause injury.

Regards
Minty*









* holds no responsibility for above remarks. Wink
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flamegrape
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PostPosted: 12:01 - 27 Oct 2010    Post subject: Reply with quote

skithepowder... good idea!! Wink

Minty... I'm gonna check it properly tonight and if it looks OK, maybe hang onto it. It does seem crazy that if they receive a bump they have to be replaced... every time. Especially at the cost they are!!
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Ingah
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PostPosted: 12:07 - 27 Oct 2010    Post subject: Reply with quote

Minty wrote:
I would go with probability, personally.

If the inner has some minor damage then what is the probability of it receiving another impact, whilst attached to my head, in that same spot that would be sufficient to cause injury.


That said, i have heard (i.e. i don't know if this is true or false) that the protection is weakened across the helmet to some degree too (in that if you hit it on a different spot it may not protect you as well as it should).

This helmet checking business is why i'm so tempted to buy an Arai (or maybe even Shoeie if this with their new helmets being checkable is true), as i've replaced my HJC helmet like 3 or 4 times now and even though it's a sub-£100 model it's still too expensive! (for a student). So rather than keep feeding HJC money...

Wish other manufacturers realised that helmet checking is important to us consumers!

P.S. Skithepowder, i hope you're not one of those that complains about raising insurance premiums after what you've just suggested to the OP Laughing
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Digitalize
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PostPosted: 12:21 - 27 Oct 2010    Post subject: Reply with quote

I've dropped my S900 a few times now, from various heights, its definitely not cracked or anything, doesn't unusually twist etc, but then i can't tell if the polystyrene has been comprimised.

I don't think its too bad, although it's always in my mind, and has made me more likely to buy a new lid if i see one i like.
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HD
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PostPosted: 12:30 - 27 Oct 2010    Post subject: Reply with quote

Ingah wrote:
That said, i have heard (i.e. i don't know if this is true or false) that the protection is weakened across the helmet to some degree too (in that if you hit it on a different spot it may not protect you as well as it should).


It would appear so as helmets are designed, like most of bike equipment, to spread the impact across a larger area. But at the end of the day, who knows.

I would just keep it Laughing
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Inkognito
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PostPosted: 13:17 - 27 Oct 2010    Post subject: Reply with quote

Here's a clip with jay leno and a guy from Arai.
About halfway into the clip they're showing some crashed helmets and he's explaining that if you drop the helmet or if it falls off the seat of your bike or something then it will still be ok.

If you drop the helmet and your head isn't inside it then it's just reacting to nothing. But if you crash then it's reacting against your head and then it does what it's supposed to do and you should replace it.

I've seen a few times where people like that explain that it really is a myth that if you drop your helmet then it's no good anymore.
It makes sense what he says. Watch it and see Smile

https://www.superbikeplanet.com/2008/Oct/091016arai.htm
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flamegrape
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PostPosted: 13:24 - 27 Oct 2010    Post subject: Reply with quote

I'll watch that when I get in tonight.

It makes sense that on impact with the road, when wearing it, the protective foam inside it being compressed between your skull and the road surface. Hopefully not damaging your skull in the process.

If it hits something without resistance on both sides, it sounds feasible it'll flex but not be damaged. It's made to compress to absorb/dissipate shock... mmmm.... I'll watch the video and make up my mind.

Brilliant... thank you peoples. You've put my mind at ease somewhat!! Smile
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Paxovasa
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PostPosted: 13:31 - 27 Oct 2010    Post subject: Reply with quote

I would continue to use it. A 3 foot drop should be fine.
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Inkognito
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PostPosted: 13:34 - 27 Oct 2010    Post subject: Reply with quote

Yeah i wouldn't worry about it.
The way they're designed to work it shouldn't do any damage other than maybe scratch it a bit if you drop it.
Can't say what it does though if you continually drop it. Say if it falls off every time you put it in the seat of the bike Razz
But once or twice i wouldn't worry about it at all.
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Clanger
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PostPosted: 19:39 - 27 Oct 2010    Post subject: Reply with quote

It's your head...you decide. Thumbs Up

Noone can make the call for you. Only you know how far it fell, how it sounded...I know what I'd do, but then I will happily wear denim jeans when it's too hot.
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Bloke
Crazy Courier



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PostPosted: 20:08 - 27 Oct 2010    Post subject: Reply with quote

If it was a proper clobber i'd but a new helmet and relegate it to a spare.

I don't buy into magical turn on and off helmets.

At the end of the day it's just packing material in there and contrary to the belief that it had nothing to react against, it is fastened to the shell of the helmet thus rigid and will deform under loads.

Drop a piece of polystyrene with 1.75kg fastened to it (the weight of my hjc helmet) onto the floor, will it deform of course it will.

As they say, it's your funeral.
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Wafer_Thin_Ham
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PostPosted: 20:10 - 27 Oct 2010    Post subject: Reply with quote

Depends how comfortable you are using it. It's not a choice someone else can make for you as we all have differing lvels of acceptable risk.
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pinkyfloyd
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PostPosted: 20:16 - 27 Oct 2010    Post subject: Reply with quote

Bloke wrote:
If it was a proper clobber i'd but a new helmet and relegate it to a spare.

I don't buy into magical turn on and off helmets.

At the end of the day it's just packing material in there and contrary to the belief that it had nothing to react against, it is fastened to the shell of the helmet thus rigid and will deform under loads.

Drop a piece of polystyrene with 1.75kg fastened to it (the weight of my hjc helmet) onto the floor, will it deform of course it will.

As they say, it's your funeral.


+1 Thumbs Up
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