User Tag List

Likes Likes:  0
Results 1 to 5 of 5

Thread: Repairing a Right, Rear Dropout

  1. #1
    Join Date
    Mar 2009
    Location
    Meriden CT
    Posts
    1,392
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Repairing a Right, Rear Dropout

    My buddy tore off the rear derailleur on his mountain bike. I've been tasked with straightening the derailleur hanger.

    The bike has vertical dropouts.

    My plan was to verify the alignment of the dropouts first (I have the H-tools), then align the hanger.

    I've discovered the axle slot has widened to 14mm as a result of the accident.

    What's the best way to close the slot to the proper 10mm dimension?

    As a minimum, I figure I've got to stick a derailleur mounting bolt in the hanger to keep it round should I decide to somehow leverage the dropout.

    Any help would be appreciated.

  2. #2
    Join Date
    Jun 2009
    Location
    Happy Valley, PA
    Posts
    3,402
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Repairing a Right, Rear Dropout

    steel, ti, aluminum, unobtanium?

  3. #3
    Join Date
    Mar 2009
    Location
    Meriden CT
    Posts
    1,392
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Repairing a Right, Rear Dropout

    Good point.

    I thought this forum was only for STEEL bike owners ;-)

    It's a steel dropout.

  4. #4
    Join Date
    Nov 2010
    Location
    Whitefish, MT
    Posts
    91
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Repairing a Right, Rear Dropout

    Peter, a hammer or large crescent wrench is your friend. Depending on the profile of the dropout, sometimes you can get the non-business end of the wrench around the dropout and bend it back. Basically, you can use just about anything that will A) give you leverage and B) not mar the dropout to bad. Good luck.
    Chris

  5. #5
    Join Date
    Aug 2008
    Location
    Flagstaff, Arizona
    Posts
    10,626
    Post Thanks / Like
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Repairing a Right, Rear Dropout

    Do you have a dummy axle? put that in there & bolt it to the non-drive side & form the damaged DO to it so you don't go overboard.
    Next, see if you can tap it >>> yes - good to go.
    No >>> get a dropout saver ( I think wheels manufacturing makes one if I remember right)
    It has flats for a wrench after you drill out the threads to tighten the derailleur against, *or* you can braze it in & tap it for a cleaner look.
    - Garro.
    Steve Garro, Coconino Cycles.
    Frames & Bicycles built to measure and Custom wheels
    Hecho en Flagstaff, Arizona desde 2003
    www.coconinocycles.com
    www.coconinocycles.blogspot.com

Similar Threads

  1. repairing Challenge tires?
    By RJR in forum General Discussion
    Replies: 5
    Last Post: 12-20-2010, 01:21 AM
  2. Thoughts on repairing a hole in bib-tights.
    By Britishbane in forum General Discussion
    Replies: 7
    Last Post: 03-28-2010, 05:56 PM
  3. Repairing bad Aquaseal job
    By nicadog in forum General Discussion
    Replies: 0
    Last Post: 11-08-2009, 03:13 PM
  4. Dropout Spacing Q
    By th_boone in forum General Discussion
    Replies: 5
    Last Post: 09-20-2009, 01:13 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •