Carbon frame repair opinion- Mtbr.com
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  1. #1
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    Carbon frame repair opinion

    Hello,

    This seemed like the best place to post this. Just a quick question. I have a 2013 Cannondale Scalpel that has a broken chainstay.

    Any thoughts as to if this is repairable? I'm planning on driving to a shop 90 min away to see if they can fix it, but if the consensus is no, I may save the trip and go in another direction.

    Thanks for any feedback!

    Carbon frame repair opinion-20190624_073729.jpg

  2. #2
    will rant for food
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    I'd bet Cyclocarbon (Drew Wilson) would do it. He's done a lot of carbon repair and carbon modification. Dude built a little Lauf for his kiddo.

    https://www.facebook.com/cyclocarbon/
    Disclaimer: I run Regular Cycles (officialy in 2016, functionally in 2020).

  3. #3
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    It's possible but challenging given the closeness to the pivot and bolts

  4. #4
    Wanna ride bikes?
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    Might be cheaper to find a used rear triangle.
    SS 29er
    SS 29+
    Fat Lefty
    SS cyclocross
    Full Sus 29er (Yuck)

    Stop asking how much it weighs and just go ride it.

  5. #5
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    It looks like the aluminum pivot mount debonded from the carbon swingarm - if that's the case it should be easy to fix.

  6. #6
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    I agree that it should be cheaper to get a replacement. I'm trying to track one down as we speak. If I have no luck there, it looks like I'll have to try to have it repaired.

    Chris

  7. #7
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    Hey ctxcrossx,

    I have the same issue in the same place with my Scalpel. Wanted to see if you had any luck with repairing this.

    Thanks!

  8. #8
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    Quote Originally Posted by HouseJunkieXXL View Post
    Hey ctxcrossx,

    I have the same issue in the same place with my Scalpel. Wanted to see if you had any luck with repairing this.

    Thanks!
    Hi,

    I started by contacting a few different local companies that do carbon bicycle frame repair. I sent detailed pics and each place seemed confident they could do it, and they also thought there may be aluminum reinforcement in the area anyway. But they said that it would be slightly thicker in that area (which worried me a little due to tolerances) but would be just as strong, if not stronger, than the original. It would have cost a few hundred dollars, from what I remember.

    But in the mean time, I ended up finding someone who had a 2015 rear triangle. It fit and it was cheaper than doing the repair.

    It's not pretty, but it works! Let me know if you have any other questions!
    Attached Thumbnails Attached Thumbnails Carbon frame repair opinion-cannondale.jpg  


  9. #9
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    Sounds good! I'm thinking about doing the same thing and source a replacement triangle.

    Thanks!

  10. #10
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    Quote Originally Posted by HouseJunkieXXL View Post
    Sounds good! I'm thinking about doing the same thing and source a replacement triangle.

    Thanks!
    I would say that's the cheapest direction to go. I happen to find a person who had a broken front triangle, so it worked perfectly. My bike is also a '13 and the rear is a '15 (which is why the two different colorways), so you should look to see the range of years that may work for you.

    Good luck and post the results, esp. if you end up going in the other direction and try to have it fixed.

    Chris

  11. #11
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    Awesome, thanks again! Yea, I definitely would like to go the replacement route but will for sure post the results either way.

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