Bent/damaged dropout & derailleur hanger on Colnago C40

Posted on
Page
of 2
/ 2
Next
  • Tried to change gear while out of the saddle going uphill and damaged the derailleur hanger. The derailleur just popped out - looks like the dropout is bent inwards and the hanger stripped the thread. Would anyone know if it's a simple replacement on Colnago C40 and who to take the bike to ... Thanks ;-((


  • Cheap Colnagos and their non-replaceable hangers.. expensive. Who's the UK Colnago importer?

  • A decent LBS should be able to put in a sleeve that can then be threaded to allow you to refit the derailleur. Dropouts can also be bent backwards using an alignment tool. You don't want to do it too often but it should cope with being bent back.

    Whereabouts are you based?

  • London, SW18

  • I'd take it to Sigma Sport in Kingston then. Dan, the workshop manager, fixed a bent hanger on a carbon frame of mine a couple of years back. It's been fine since.

  • A good dealer can do that for you for relatively low cost (considering that the frame is worth it).
    No need for brazing or welding.
    Can be done fro all steel, alu or carbon frames without replaceable derailleur hanger, as long a the droput is not cracked and it's not bent too much (steel is very forgiving, alu and carbon not).

    Dealer should have a reamer of the correct size and a threaded metal piece, that will be glued in place.

    Dill dropout to remove old threads
    Ream drilled hole to make correct diameter
    Glue and place threaded insert
    Check / correct alignment with dropout / rear derailleur hanger alignment tools
    Job done

  • I'd take it to Sigma Sport in Kingston then. Dan, the workshop manager, fixed a bent hanger on a carbon frame of mine a couple of years back. It's been fine since.

    Thanks, would you know roughly how much?

  • It depends how long it takes. Dan fixed mine whilst I waited so I doubt it'll be uber expensive.

  • A good dealer can do that for you for relatively low cost (considering that the frame is worth it).
    No need for brazing or welding.
    Can be done fro all steel, alu or carbon frames without replaceable derailleur hanger, as long a the droput is not cracked and it's not bent too much (steel is very forgiving, alu and carbon not).

    Dealer should have a reamer of the correct size and a threaded metal piece, that will be glued in place.

    Dill dropout to remove old threads
    Ream drilled hole to make correct diameter
    Glue and place threaded insert
    Check / correct alignment with dropout / rear derailleur hanger alignment tools
    Job done

    Thanks, sounds like I need professional help

  • in my professional opinion the frame is beyond saving, and as a registered disposer of carbon, i am happy to take it off your hands!!!

  • I'd take it to Sigma Sport in Kingston then. Dan, the workshop manager, fixed a bent hanger on a carbon frame of mine a couple of years back. It's been fine since.

    Are you sure Sigma isn't in Hampton Wick, Andy? Same shit tho I spose...

  • Isn't that whole hanger assembly removable? Looks like it with the allen key bolts.

  • shut up sam. there is only 1 bolt to the seat stays.

  • Are you sure Sigma isn't in Hampton Wick, Andy? Same shit tho I spose...

    It is, but no-one knows where Hampton Wick is.

  • Apart from you. Obviously.

  • You lanky bastard.

  • you forgot "lanky student"

  • You sure? ;-)

  • yup

  • I'm not a fncking student!!

    and Fuck you Andy, or should I say "dad"

    Hampton Wick is shit. My ex lives there, she is lovely though.

  • dumped where you?

  • first a broken derailleur hanger and now a broken heart...

    nevermind Max plenty more fish in the sea an all that.

  • hahaha

    Murts, just coz you got a ball and chain ;)

    same goes for you Vedders

  • Post a reply
    • Bold
    • Italics
    • Link
    • Image
    • List
    • Quote
    • code
    • Preview
About

Bent/damaged dropout & derailleur hanger on Colnago C40

Posted by Avatar for mwollny @mwollny

Actions