Khan
new member
Reged: 09/10/04
Posts: 10
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Any help would be appreciated.
I've got an Lemond TVT-built carbon from from the "Z" days. It's come apart three times now. The first time I sent it to Calfee for repair. It was a chainstay tube coming loose out of the dropout. Second time I was able to do the repair myself by doing some research on bonding carbon fiber to aluminum. It was the other end of the chainstay coming loose from the bottom bracket.
Now, both chainstay tubes have come loose from the BB shell and I'm not going to fix it until I have a solution for my problem. I want to find a way to re-bond all of the joints. Anyone have any knowledge or direction to point me for information on how to un-bond the joints and then re-join them. There are some great compounds out there for doing the repairs but, I feel my luck has run out for not having a catastrophic result from one of these incidents. Besides, my wife will probably kill me if I don't do something more permenant. She wants me to get a new frame (she cycles and has a titanium frame so, it's not that incredulous of a suggestion) but, this Lemond frame fits my form and cycling style so well, I hesitate to mess with perfection.
Thanks in advance,
Khan
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flythebike
captain
Reged: 08/26/04
Posts: 272
Loc: N. Virginia, USA
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You mentioned Calfee...why not get one of his frames? You won't be disappointed.
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Khan
new member
Reged: 09/10/04
Posts: 10
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After talking with the guys at HHRacing, I may have to go this route. HHRacing informed me that with the age of the frame and materials, there would be no sure way to rebond the frame and expect it to hold up. I'm sure you can understand when you find a frame that just fits so well, it's hard to give it up or ever think you'll get something that is just as good.
I'll probably just send Calfee the frame and say match this for size and geometry.
Thanks for the input.
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GonBykn
new member
Reged: 08/22/05
Posts: 1
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I have a carbon fiber frame of unknown origin and have a problem with the drop outs. The drop outs have de-bonded (sp?) themselves from the frame. Can you send me the info you learned on how to re-bond aluminum to Carbon. I feel the same way about my frame, I love it and would rather get running again than buy a new one. I also don't want to pay throught the nose to have someone else do what I do myself.
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Khan
new member
Reged: 09/10/04
Posts: 10
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Here's where I got it and what I used. Not being an expert, I wouldn't recommend doing this w/o having someone who knows how to work with carbon fibre evaluating the frame first. It my be too old and brittle to do anything with and you would be endangering your welfare by trying to fix it at all, much less fix it yourself.
Yale, A E Enterprises, 4055 Pacific Highway, San Diego, CA 92110. (619) 299-7710.
3M DP-460 epoxy adhesive
dispenser gun for above
nozzles for above
here's a link to a carbon fibre builder
http://www.sheldonbrown.com/rinard/carbon_fiber.htm
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Lon
sage
Reged: 12/20/03
Posts: 595
Loc: Pittsburgh, PA
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I'd be careful or you will end up paying through the nose and every other oriface to a hospital. Calfee repairs carbon and built Lemonds later frames that he raced.
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Khan
new member
Reged: 09/10/04
Posts: 10
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Consider what Lon is saying very seriously. I feel very lucky that none of my incidents w/ the frame coming apart were catastrophic to my person. At this juncture, I'm going to rebond the frame and a local bike shop is putting together a display, of some historic/classic cycling memorabilia. The owner has asked me to loan it to them for display. That's about as much use as it's going to get these days. Darndest thing, I saw a complete original version of this bike (used by Ronan Pensac of Team Z) on Ebay for about 15000. Whether it goes for anywhere near that, who knows.
Any offers for my frame? ;-)
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