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 Post subject: Thinking of going carbon..... may want to think again.....
PostPosted: Tue Aug 21, 2012 10:39 am 
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Posts: 2082
Location: Southend
Some old school BMX friends of mine have got caught up in a "disagreement" over the introduction of Carbon BMX race frames and one of them was linked to this, beware there are some grim pictures if you're pro-carbon !

Busted Carbon

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 10:43 am 
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Location: essex
Ouch, although a lot of them are pretty unavoidable "i hit a car doing 35" lol

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 10:55 am 
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Hmm most of them are roadie bikes though so probably even thinner than MTB/BMX carbon? Kudos to the guy at the bottom who's bar snapped and he still won!


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 11:35 am 
Posts: 145
Funny how 2 of the snapped seatposts are a layback with the saddle adjusted as far back as possible
where they trying to break them?


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 1:25 pm 
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As Eccles said, all roadies apart from one!
all pretty simular fails too.

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 2:30 pm 
Posts: 276
It doesnt surprise me at all!

I work with metals and I used to do heat treating, the more carbon in a material the more brittle and hard it is , hardened steel is simply steel treated with more carbon then mild steel, and then when heat treated further, hardens the metal even further, good for making tools with, but unbelievably brittle.

Aluminium being soft as playdo is also the reason its so durable, your always gonna compromise strength and weight with durability!
I think Id even want my road bike to be mostly if not all aluminium, Id rather have faith in the strength of the bike then having that tiny bit less weight.


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Tue Aug 21, 2012 8:30 pm 
Posts: 291
I'm so pleased I didn't buy those carbon bars I was looking at, my riding style would lead to an unavoidable failure.


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Wed Aug 22, 2012 10:02 am 
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Carbon is very strong if used in the correct mannor, IE in tubes for bikes etc,
it is weak if being forced in the wrong directions to what it has been designed for, like those road frames and hitting cars.
thats the odd thing about the MTB bars, never seen any go like that before?

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Wed Aug 22, 2012 11:50 am 
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Location: Stanford-le-hope
VW-surfbum wrote:
Carbon is very strong if used in the correct mannor, IE in tubes for bikes etc,
it is weak if being forced in the wrong directions to what it has been designed for, like those road frames and hitting cars.
thats the odd thing about the MTB bars, never seen any go like that before?



Thats why i'm dubious about buying some to the top name branded carbon stuff of eaby from Asia, some of it seems to cheap to be true.

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Thu Aug 23, 2012 8:12 am 
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Posts: 1335
Talking of carbon,

This looks nice > http://dirt.mpora.com/news/fresh-produc ... vices.html although the top bits look a bit skinny n snapable, not bad price either, its about the same as the MRP alumium version.

Actually looking at their website perhaps this version is the one to go for > http://www.csixx.com/chainguide_110.html#ad-image-0

Andy
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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Thu Aug 23, 2012 8:22 am 
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Posts: 5060
On mtbr someone is selling my full suss carbon frame and shock for £450 :shock: grab it while you can!!

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Thu Aug 23, 2012 8:29 am 
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VW-surfbum wrote:
On mtbr someone is selling my full suss carbon frame and shock for £450 :shock: grab it while you can!!


Before it snaps :)


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Fri Aug 24, 2012 7:01 pm 
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Posts: 149
Location: Cheshunt
Some of those pics are pretty scary!

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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Sat Aug 25, 2012 6:30 pm 
Posts: 16
Been looking at getting a new full sus bike! thinking that i will be giving carbon a miss now!


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 Post subject: Re: thinking of going carbon..... may want to think again...
PostPosted: Sat Aug 25, 2012 6:53 pm 
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Posts: 5060
Don't, carbon is the future.

My two go everywhere and do everything

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