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  1. #1
    mtbr member
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    Oct 2010
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    Mojo HD chain lengthening under suspension compression?

    So I'm getting ready to do my XX1 upgrade, and I understand that when measuring for proper chain length with a new drivetrain, you should do the chain length measurement with the suspension fully compressed. I'd rather not deflate my shock (call me paranoid, but I swear right after I deflated and reinflated my RP23, it started making a "ffft" sound at a certain point in the travel that people told me was air in the damping chamber; don't want to risk anything like that with my XFusion Vector). Since the extra chain lengthening due to suspension compression should be consistent, do any other HD owners know what it is? If I measure for chain length with the suspension uncompressed, do I need to add 1 link to account for when the suspension is fully compressed? 2 links?

    Thanks!

  2. #2
    mtbr member
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    Jul 2006
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    1,291
    You can also remove the rear shock eyelet bolt and let the tire bottom against the seat tube to get your measurement. It should be close to 2 links.

    Hans

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