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  1. #1
    mtbr member
    Join Date
    Oct 2007

    Bonking ... not feelin' well Siezed chain stay bolt

    Anyone ever deal with a seized suspension bolt? The rear chain stay pivot bolt on my 2008 S-Works Stumpjumper is seized. Not only that, the bolt is now stripped! Specialized has no available stays for 2008 bikes! Tried penetrating oil, freezing bolt, eze out...

  2. #2
    Reputation: phlegm's Avatar
    Join Date
    Jul 2006
    So, we're in hardcore mode now.

    A stripped bolt extractor kit (with a little auger-type head) might be able to get enough grip to get it out. If truly seized though, a drill may be your next tool.

  3. #3
    mtbr member
    Join Date
    Feb 2014

    Re: Siezed chain stay bolt

    Drill a relatively small hole in the center and use a extractor. Be sure to slowly thread in, they snap pretty easily if you go full speed and it really is seized because of the hardening process they use.

    If that fails, very very carefully drill it out our have a machine shop do it. Ideally, bike is in a vice with a drill press doing the work.

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