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My road bike is aluminum with a carbon rear triangle. The carbon rear slides into the aluminum, and I believe was bonded with some sort of epoxy. The pieces have begun to separate after 2.5 years and the company will not warranty the frame.
Is it possible to repair this by inserting epoxy into the gap and sliding the carbon back in place? What sort of precautions should I take, and epoxy should I use?
If I can pull the carbon out further, should I sand the two surfaces before re-bonding?
I am posting this as an answer but it is more of a long comment. The information I have is from the place I trust to do carbon repairs. According to Hot Tubes aluminum and the carbon resin react. The aluminum must be sealed to get a good bond. The materials are not your hardware grade epoxy. If we were talking about a fishing rod or something that would not cause serious injury in the event of failure I would say go for and try to fix it yourself. My thought is there is enough information and the resulting horror stories of catastrophic frame/component failure to warrant at least getting a professional opinion.
