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  1. #1
    Junior Member
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    Cog Threading: NJS=ISO?

    Just wondering, is the threading on, for example, a Dura-Ace NJS cog going to be the same as an EAI cog (which is marked ISO)? Or does NJS=JIS? What's the deal? What are these standards, how do they compare?

  2. #2
    Senior Member bitingduck's Avatar
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    Jan 2005
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    found this ancient thread about cog threads:
    http://www.bikeforums.net/archive/in.../t-159960.html
    Track - the other off-road
    http://www.lavelodrome.org

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