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Type: Posts; User: axa

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    Re: Zongshen 167FMM and 169FMM crankshafts

    as i and many before us have found , significant power gain is usually achieved with a different bike entirely.
    I just don't see how one could get the parts and spend the time experimenting to see...
  2. Replies
    4
    Views
    10,066

    Re: Zongshen 167FMM and 169FMM crankshafts

    strictly speaking about the stroke, which is 65mm on a167FMM, when I decked my head I calculated a static CR from 9 to 10.5 with only a 50 mill shave. 2.5 mm would be more like 13 CR which doesn't...
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