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  1. #1
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    Propensity for stiff links; A single-speed thing?

    I didn't think much of it when I had to loosen a few stiff links when putting a new chain (KMC Z610HX) on but figured stiff links to be a manufacturing issue not a wear issue.

    It has turned out to be an ongoing issue now that the chain is in service and I don't understand why. I have never had this trouble with my geared bikes.

    The chain is cleaned and lubed regularly.

    Any insight?

  2. #2
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    I volunteer at the local co op and i've seen alot of that on our "demo" bikes that we teach kids/adults on. On that bike it's from the pins not being in properly, either too far or not far enough. Are you using a master link system or are you breaking it if and when you take it apart?

  3. #3
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    I use a master link and find several stiff links at a time. It's not limited to just one link or something.

  4. #4
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    Hmmm - I always use that chain (KMC Z610HX) and I've never had that problem with any of them. Maybe just a on-off occurence?

  5. #5
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    Yep, there's something up with that particular chain. It's not a SS issue.

  6. #6
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    Are you sure that your chainline is correct? Is this a brand new chain or did you get it from somebody else who may have tried to use it on a bike with derailleurs? If it's none of those then I agree that it's probably a manufacturing fault and you should contact KMC. They'll probably ask you to return it to them and then send you a new one.

    Contact Us_KMC Chain

  7. #7
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    The chain was installed new and has about 400 miles on it. The chainline is good (measured) and I use a Surly SS cog. The chainring, however, is not SS specific. (34/18 BTW)

    Before installing the Surly cog I would occasionally throw the chain but I don't think I ever have since.

    I can understand how a chain might be manufactured with a couple stiff links but do not understand how a properly lubed chain would develop them with use. That's the mystery as far as I'm concerned.

  8. #8
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    Quote Originally Posted by bugshield View Post
    Before installing the Surly cog I would occasionally throw the chain but I don't think I ever have since.
    Aha! That sounds like there was something wrong with your old cog. If it was badly worn then it damaged your new chain.

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