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  1. #1
    Senior Member

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    Join Date
    Aug 2012
    Posts
    688

    Default Are there any round swingarms that are not 9-1/8 inside or is this one tweaked?

    I got this round swingarm a few days ago and just got around to installing it. My first clue that something was up was that the axle spacers that came on the complete wheel that I got didn't fit, thought that was odd... as it was pulled complete from a running bike.


    Then the sprocket seemed off, put a straightedge on it and it's about 3/8" off toward the non-drum side. Even with no spacers installed on the drive side of the wheel (which is a midstar) there is no way that the sprockets will align. I did verify the transmission was not angled and the primary drive pulleys align perfectly.



    Lastly, I measured inside to inside of the axle plates and got just a hair over 8-5/8.

    This swingarm must be bent, right? I was under the impression that all round swingarms were 9-1/8 inside.




  2. #2
    Senior Member

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    Join Date
    Jul 2011
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    549

    Default

    I have no idea if they are all 9 1/8....but Im happy to measure it on my '71 this afternoon for you as a comparison.

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