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  1. #1
    Senior Member acape's Avatar
    Join Date
    Jul 2005
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    Raleigh, NC
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    New BB - grey gritty gunk on left threads - normal?

    Just got a brand new 105 bottom bracket (BB-5500 octalink) and cranks. The main body (right) side's threads look clean. But on the other side's threads there is some yellowish grease (it appears) and 4-5 of the threads have a greyish gunky, almost gritty looking material in them. What is this and is it normal?

  2. #2
    Junior Member
    Join Date
    Nov 2006
    Location
    Omaha, NE
    My Bikes
    Surly Big Dummy
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    The grey stuff is micro-encapsulation. Thread lock applied at the factory. The yellowish grease, well my best guess would be grease.

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