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Carbon repairs

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  • 04-05-2021 1:24pm
    #1
    Jhet75
    Registered Users Posts: 8 ✭


    Hello all

    I need some assistance with my Fuji Transonic C10 Carbon road bike. The front mech attachment plate has become damaged or faulty inside the frame, and the attachment plate for the front mech is now loose and unusable. I need to find someone that specializes in carbon repairs as Fuji has told me it's fair wear and tear, which is absolute nonsense and not acceptable in terms of customer support from them.

    Would anyone the contact details for the right person to repair my bike?

    Thanks


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    #2
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 48,573 CMod ✭✭✭✭magicbastarder


    how old is the bike?


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    #3
    Jhet75
    Registered Users Posts: 8 ✭Jhet75


    Bought the frame in 2016, February if I recall, directly from Fuji.


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    #4
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 48,573 CMod ✭✭✭✭magicbastarder


    hmm, no chance really of following that up as a warranty issue so, unless they offered lifetime warranties.


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    #5
    Paddigol
    Registered Users Posts: 1,471 ✭✭✭Paddigol


    I know Wayne in Cycleplus (Greystones) does carbon repairs and has certification... might be worth contacting them to see if they can help?

    http://www.cycleplus.ie/carbon.htm


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    #6
    Jhet75
    Registered Users Posts: 8 ✭Jhet75


    magicbastarder wrote: »
    hmm, no chance really of following that up as a warranty issue so, unless they offered lifetime warranties.
    It happened before the 5 year warranty was up but they because I hadn't fitted SRAM they wouldn't cover it. Which is horsesh1te!


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    #7
    Jhet75
    Registered Users Posts: 8 ✭Jhet75


    Paddigol wrote: »
    I know Wayne in Cycleplus (Greystones) does carbon repairs and has certification... might be worth contacting them to see if they can help?

    http://www.cycleplus.ie/carbon.htm

    Thanks Paddi, I'm down in Cork but ill certainly open the conversation.


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    #8
    Dilbert75
    Registered Users Posts: 4,724 ✭✭✭Dilbert75


    Altitude.ie in Waterford might also be an option.


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    #9
    Eamonnator
    Registered Users Posts: 6,561 ✭✭✭Eamonnator


    Paddigol wrote: »
    I know Wayne in Cycleplus (Greystones) does carbon repairs and has certification... might be worth contacting them to see if they can help?

    http://www.cycleplus.ie/carbon.htm

    Top man, Wayne, really knows his stuff.


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    #10
    mollser
    Registered Users Posts: 1,111 ✭✭✭mollser


    Paddigol wrote: »
    I know Wayne in Cycleplus (Greystones) does carbon repairs and has certification... might be worth contacting them to see if they can help?

    http://www.cycleplus.ie/carbon.htm

    Agree with this, he resurrected a Pivot for me, excellent to deal with and a top class job. The real advantage is that he specialises in MTB / Road bikes - any other carbon place I contacted to wouldn't touch mtb in particular.


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    #11
    Type 17
    Registered Users Posts: 2,730 ✭✭✭Type 17


    Looking at pics of the frame online, it looks like the FD plate is held on with bolts in rivnuts, like a typical bottle cage mount, or perhaps even pop-rivets (although that would be more typical on alu frames) - there may not actually be any damage to the carbon(?)

    Are there Allen or Torx bolts holding it onto the frame? - If so, you might just need new rivnuts (or even re-tightening of the existing ones if they aren't too far gone).


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    #12
    mamax
    Registered Users Posts: 879 ✭✭✭mamax


    Or remove the attachment plate and change to a band on front mech, I've done this to one of my bikes without any issues.
    Is the down tube round?


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    #13
    Type 17
    Registered Users Posts: 2,730 ✭✭✭Type 17


    In the pics I've seen, the area has a flat area for the FD bracket, so a band-on won't work.
    Also, band-on mechs shouldn't be used with (modern) carbon frames and as a result, they don't have the correct band-on diameter(s).


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    #14
    Jhet75
    Registered Users Posts: 8 ✭Jhet75


    The bolts are goosed, I can't open or either of them. One is spinning out and the other ceased. The only option to drill them out. I'm afraid that I'll compromise the carbon if then I try and rivet the plate back on.


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    #15
    Type 17
    Registered Users Posts: 2,730 ✭✭✭Type 17


    The rivnuts have come loose in the carbon.

    Don't just drill them out like you might working with an all-metal scenario, the rivuts may spin, and will thin/enlarge the edges of the carbon hole with friction and heat.

    The heads of the bolts should be ground off slowly with an angle grinder (pause often/use a wet rag to prevent excessive heat build up). If one of them is countersunk, it may have to be drilled, but avoid excessive heat or friction.

    When the heads are gone, you can remove the FD bracket and see the rivnuts and decide how to proceed - it might be possible to re-set them, but if the bolts are seized, it's probably better to remove/replace them.
    Ensure the threads are well greased, as the reaction between the steel bolts and aluminium rivnuts is the cause of this issue (grease your bottle cage bolts, folks!).

    If this sound very complex, it might be worth consulting one of the frame repair guys mentioned above, and getting them to do it, as they have probably come across this issue before.


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