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  1. #1
    career-courier
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    "Mushroomed pin" Chain

    So a friend of mine who rides CX gave me a 1/8" chain, it was free so i couldnt say no, he told me that I might not be able to use a chain tool on it becuase of the "Mushroomed" pins that prevent the chain from stretching, its a BMX race chain, so my question....Is my friend right and ill just be wasting my time be trying to take a few links out of it with a tool tomorrow, or is he talking crap?
    Last edited by Rob1900; 03-18-08 at 04:17 PM. Reason: spelling
    I talk to my track bike at night...

  2. #2
    cab horn
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    Once you punch it out, it's done - if it's mushroomed. Unless you like chain failure. Rejoin with a quicklink. You may be able to get away with it on some SS/Fixed specific chains but on derailleur chains = disaster waiting to happen.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  3. #3
    Senior Member barba's Avatar
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    You can use your chain tool to break the chain, but I would not try to just push a used pin back in the rejoin it. Such chains usually use a quick link system. I am sure you can get a spare at your LBS.

    EDIT: operator beat me to it, but he is right

  4. #4
    Elitist carleton's Avatar
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    Dude, it's totally worth the $10-15 dollars spent on the new chain of your choice to have the peace of mind of knowing what you have, the condition it's in, and its fitments.

    Remember, the chain is your transmission AND brakes of this vehicle.



    Quote Originally Posted by Rob1900 View Post
    So a friend of mine who rides CX gave me a 1/8" chain, it was free so i couldnt say no
    You can always say "no." A chain that isn't right for your bike will just make work for you.

  5. #5
    Ride for Life wearyourtruth's Avatar
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    i agree with what has been said so far.

    http://www.parktool.com/repair/readhowto.asp?id=25
    go down to the part where it talks about shimano chains, it has good information and pictures about mushroomed pins.
    before posting, a "noob" should always ask themselves "could this have been answered by first visiting Sheldon Brown

    -Tim-
    www.velocipedebikeproject.org

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