Chain length

dabber
dabber Posts: 1,978
edited July 2015 in Workshop
I'm currently running Ultegra 6800 with a compact and 11/28 cassette.

I want to, occasionally, run a 11/32 cassette. I plan to change the current short cage (SS) RD to a GS RD.

My question. If I setup the chain length for the 11/32 cassette will this then work fine with the 11/28?

My logic thinks it's fine but just to be sure....
“You may think that; I couldn’t possibly comment!”

Wilier Cento Uno SR/Wilier Mortirolo/Specialized Roubaix Comp/Kona Hei Hei/Calibre Bossnut

Comments

  • arlowood
    arlowood Posts: 2,561
    Using the calculator in the link below your 11-28 needs 56 inches ideally while the 11-32 needs 57 inches.

    http://www.machinehead-software.co.uk/bike/chain_length/chainlengthcalc.html

    Either way you should be OK but erring on the safe side I would opt to fit the chain for the largest sprocket (ie 32, 57 inches). The rear derailleur will take up the slack when you switch to the 11-28
  • dabber
    dabber Posts: 1,978
    Thanks. Yes, I was planning to set it up for the 32 sprocket. The 28 sprocket is the second largest sprocket on the 11/32 cassette anyway so the more I think about it I can't see any issues with doing that.
    “You may think that; I couldn’t possibly comment!”

    Wilier Cento Uno SR/Wilier Mortirolo/Specialized Roubaix Comp/Kona Hei Hei/Calibre Bossnut

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