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PostPosted: Sat Aug 18, 2012 8:00 am 
Retro Guru

Joined: Mon May 10, 2010 2:22 pm
Posts: 316
Location: Warwickshire
A friend who works for Mclaren has offered to fix it if it breaks, lol.


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PostPosted: Sat Aug 18, 2012 9:11 am 
Old School Grand Master
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Joined: Mon Jun 14, 2010 9:06 pm
Posts: 4427
Location: Herts UK
SiRvInO wrote:
People have this issue about carbon..yep a few break, they are the ones peeps go on about, ok carbon doesnt bend -



carbon does bend - the stays on the cannondale scalpel are made from it and have been for over 10 years - they are designed to flex providing rear suspension.

apparently when carbon fails. like aluminium, it gives no warning whereas steel will bend first.

there is a website showing broken components. about half are due to crashes so no big surprise then - roofracks carriers eems to be nasty to carbon frames :shock:


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PostPosted: Sat Aug 18, 2012 10:57 am 
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Joined: Mon May 10, 2010 2:22 pm
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Location: Warwickshire
Found that website, it was mostly crashed road bikes.


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PostPosted: Sat Aug 18, 2012 2:03 pm 
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Location: daaan saaaf
Quote:
ok carbon doesnt bend


Try telling that to a fisherman.

Image

:D

I've got one of them there new fangled carbon fibre frames. Had it 4 years, no problems, no cracks and no rust. I doubt it will outlive a proberly painted and rust protected steel frame, but I'll have to wait 30 or 40 years to find out.


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PostPosted: Sat Aug 18, 2012 7:07 pm 
King of the DuckBoard
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Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
xerxes wrote:
Quote:
ok carbon doesnt bend


Try telling that to a fisherman.



:D



Agree. My carbon seat flexes beautifully. Better than any padded seat. feels great.


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PostPosted: Sat Aug 18, 2012 7:38 pm 
Retro Guru

Joined: Mon May 10, 2010 2:22 pm
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Location: Warwickshire
xerxes wrote:
I've got one of them there new fangled carbon fibre frames. Had it 4 years, no problems, no cracks and no rust. I doubt it will outlive a proberly painted and rust protected steel frame, but I'll have to wait 30 or 40 years to find out.


What have you got???


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PostPosted: Sat Aug 18, 2012 8:21 pm 
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Quote:
What have you got???


It's a 2007 Giant XTC Composite 3.


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PostPosted: Sat Aug 18, 2012 11:01 pm 
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Location: Suffolk
I would buy a used carbon frame even if riden hard.

Steel frames break, alu frames break, Ti frames break. No one frame material is in heraently prone to breaking more than any other, sopme designs are more prone to breaking but that a different matter.


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PostPosted: Sun Aug 19, 2012 8:21 am 
Retro Guru

Joined: Mon May 10, 2010 2:22 pm
Posts: 316
Location: Warwickshire
bm0p700f wrote:
I would buy a used carbon frame even if riden hard.

Steel frames break, alu frames break, Ti frames break. No one frame material is in heraently prone to breaking more than any other, sopme designs are more prone to breaking but that a different matter.


Agree, but for me the decision is around risk and comeback. £2k+ with potnetially no comeback has me twitching.....interestingly Lapierre's warranty wording doesn't specify original owner......


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PostPosted: Sun Aug 19, 2012 9:33 am 
retrobike rider
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Joined: Tue Jul 10, 2012 11:58 pm
Posts: 2362
Location: Bournemouth
I've had my DiamondBack WCF 4.0 for nearly 15 years, jumped it, ridden hard, big air, crashed it, no problem. Not got a worry about carbon.

I also work in the marine industry, and they use a lot of carbon in racing yachts, and it takes a serious hammering


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