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  1. #1
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    Threading for shimano crank arm

    What direction is the threading for the non-drive side of a shimano ultegra crank arm on an octalink bb? Can't seem to get the crank arm off. Thanks!!

  2. #2
    Senior Member demoncyclist's Avatar
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    Every crank I have ever seen is traditionally threaded.
    DEMON

    Satanic Mechanic
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    2011 Lynskey Sportive (Shimano Ultegra 10s)
    1988 Cannondale SM400 (Suntour XC-M 7s)

  3. #3
    Elitist Troglodyte DMF's Avatar
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    GCRyder: Removal tool? You're thinking about a crank puller, which the Octalink doesn't need. It uses a self-extracting bolt turned by a 8mm hex wrench.

    hamr22: Don't remove the cap with the two pin holes; it keeps the crank arm bolt captive. Just turn the crank arm bolt in the normal - counterclockwise - direction and the crank arm will back off with the bolt.
    Stupidity got us into this mess - why can't it get us out?

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  4. #4
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    Thanks...got it unstuck and removed. My friend told me that the non drive side was left hand threaded and that didn't seem right. Also, glad you told me to keep the cap on, which my moron friend also told me to remove first.

  5. #5
    Elitist Troglodyte DMF's Avatar
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    Most bottom brackets are reverse threaded, but not crank arms.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  6. #6
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    Quote Originally Posted by hamr22
    Thanks...got it unstuck and removed. My friend told me that the non drive side was left hand threaded and that didn't seem right. Also, glad you told me to keep the cap on, which my moron friend also told me to remove first.
    The pedal mounting hole on the nds crank arm is left-hand threaded.

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