Chain too Short ?
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  1. #1
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    Chain too Short ?

    Hi Guys,

    I'm finishing off my first build and I'm wondering if you think the chain length looks too short or if it's Ok ?

    Drivetrain is Campy Potenza 11 & I followed their advice of small ring, smallest sprocket & 10-15mm between chain & "rocker" as they call it.

    Any advice is much appreciated.
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  2. #2
    'brifter' is f'ing stupid
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    Looks good to me.
    #promechaniclife

  3. #3
    What the what???
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    Close, but there’s still enough flex in the pulley’s that I’d say it’s the okay.


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  4. #4
    RoadBikeReview Member
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    Workable but the next time you cut a chain I would add a link to that set up.
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  5. #5
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    Quote Originally Posted by Srode View Post
    Workable but the next time you cut a chain I would add a link to that set up.
    Really? Looking at the third pic, an extra link would make it slack.
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  6. #6
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    Quote Originally Posted by Lombard View Post
    Really? Looking at the third pic, an extra link would make it slack.
    I'm not familiar with Campy sets but assume there is something similar to a B screw to take up a bit of slack if needed. If not, then it might be optimal. I'd rather have the extra link and try it first, then cut it out if it doesn't work. On a new build / set up - I always error on the too long side first (unless I am replacing a chain that works already, then I just match the last chain)and test fit with a used quick link. Once I have it right I put in a new quick link.

    To me, the risk of the current set up is picking up a stick or something between the chain and the cog with not much room give additional slack to let it pass around without tearing off the DR. There's some room for more slack but not much.
    Gravel Rocks

    Trek Domane
    Niner RLT9 (Gravel Bike)
    Niner RLT9 RDO
    BH G7 Disc
    Trek Crockett

    "The Spirit of the Party "serves always to distract the public councils and enfeeble the public administration. It agitates the community with ill-founded jealousies and false alarms, kindles the animosity of one part against another, foments occasionally riot and insurrection

  7. #7
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    Quote Originally Posted by Srode View Post
    I'm not familiar with Campy sets but assume there is something similar to a B screw to take up a bit of slack if needed. If not, then it might be optimal. I'd rather have the extra link and try it first, then cut it out if it doesn't work. On a new build / set up - I always error on the too long side first (unless I am replacing a chain that works already, then I just match the last chain)and test fit with a used quick link. Once I have it right I put in a new quick link.

    To me, the risk of the current set up is picking up a stick or something between the chain and the cog with not much room give additional slack to let it pass around without tearing off the DR. There's some room for more slack but not much.
    Campy derailleurs do indeed have the equivalent of the B screw. Sizing a chain is really straightforward. Put it on the small chainring and the small cog and remove links until there is no hanging slack. If the chain is too short for the big-big combination after doing this, then you have the wrong derailleur or you have to be willing to ride "out of specification" where you never use the big-big or small-small combinations.

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