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  #11  
Old 01-04-13, 01:16
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The lifecycle if carbon may be longer than alloys but it is the resin that is the weak link.
My 2007 Cannondale System Six is still going very strong. If anything, the alloy sections in the back are looking worse than the carbon front end. It still feels and rides great though. Best crit bike I've ever owned.
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Old 01-04-13, 02:29
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The lifecycle if carbon may be longer than alloys but it is the resin that is the weak link.
Since no carbon product can be separate from the resins I think that the separation of the resin from the fabric is accounted for in breakage stats. So what do you mean for us to take into account? There is no indication that resins are failing where the fibre has not?
If there was ever a weak link in CF bikes it was the engineering. CF is not a material made for iterative engineering. Build a frame and see where it breaks. Make it stronger and see where it breaks now, etc. Many things are made better this way but a lot of early CF products revealed their design deficiencies in abrupt ways.
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Old 01-04-13, 02:54
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Ten years from now I'll let you know how my Madone 5 is holding up.

My 2007 Giant TCR C0 was great for a couple seasons, and then got really saggy and creaky. I've spoken with a few riders who've had similar experiences with TCRs of that era. I'm told that the problem is micro-gaps between the lay-ups that open up with flexing. Higher compression techniques in forming fork crowns, head tubes, seat clusters, and bottom brackets is supposed to alleviate this.
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Old 01-04-13, 04:02
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Ten years from now I'll let you know how my Madone 5 is holding up.

My 2007 Giant TCR C0 was great for a couple seasons, and then got really saggy and creaky. I've spoken with a few riders who've had similar experiences with TCRs of that era. I'm told that the problem is micro-gaps between the lay-ups that open up with flexing. Higher compression techniques in forming fork crowns, head tubes, seat clusters, and bottom brackets is supposed to alleviate this.
I had a 2006 TCR C1 for just over a year and traded it in for my System 6. The difference in stiffness was huge to say the least.

Since then Giant has really stepped up in terms of frame stiffness and finish quality though.
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Old 01-04-13, 04:42
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I had a 2006 TCR C1 for just over a year and traded it in for my System 6. The difference in stiffness was huge to say the least.

Since then Giant has really stepped up in terms of frame stiffness and finish quality though.
I have 2006 TCR composite.I haven't had any problem with it but was considering getting a new frame anyway.
I had thought that I may not notice much improvement with a new frame, but what you guy's have said has got me thinking.
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Old 01-04-13, 07:50
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Great info here, guys, thanks. When I mentioned my not very optimistic experience with carbon I meant my 2004 Pinarello Prince SL: after 22,000 miles the fork was rigid but creaky. That made me very nervous, and when carefully checking the frame the left carbon stay cracked easily when pressed hard to verify deflection. Now I ride a Look 585 Ultra, which after 9,000 miles remains solid but sometimes I wonder if such a thin frame can survive many miles... Maybe I'm too exigent, but I think a well-engineered frame should last 50,000 miles at least, especially with the prices asked today.
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  #17  
Old 01-04-13, 08:34
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Originally Posted by simo1733 View Post
I have 2006 TCR composite.I haven't had any problem with it but was considering getting a new frame anyway.
I had thought that I may not notice much improvement with a new frame, but what you guy's have said has got me thinking.
It was a nice bike overall and if I wasn't racing at the time I would have kept it. I just found that it was a little soft, especially for criterium racing where you are frequently sprinting and accelerating. Great bike for all day rides though.
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Old 01-04-13, 15:53
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My first carbon bike was my 2007 Cervelo Soloist. Loved the bike, suited me perfectly. Proabably rode no more than 5k per year as I was super precious and didnt ride in rain etc. Last year on a long ride the right hand crankset bearing insert came loose and the bike was replaced

Now have a Storck fenomalist rides nice but head tube is so stiff any bump kills my arms.. . . . . . . . . . .still miss my soloist
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  #19  
Old 01-04-13, 16:33
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My first carbon bike was my 2007 Cervelo ... Proabably rode no more than 5k per year...
5,000 miles/year or 5,000 km/year?
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  #20  
Old 01-04-13, 16:48
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Originally Posted by FignonLeGrand View Post
My first carbon bike was my 2007 Cervelo Soloist. ..................
I've never heard of a carbon soloist.
I have an 2009 aluminum Cervelo Soloist but many other riders think it is a carbon frame - perhaps because of its black anodized finish.
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