Cycling Equipment · Public discussion

DA Triple Front Derailleur - tooth differences

Started by Saltytri · · Last activity · 5 posts · 638 views

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Cycling Equipment
Published
16 March 2003
Last activity
16 March 2003
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Saltytri
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  1. I recall reading somewhere that the DA triple front der needs a 14 tooth difference between the big
    and middle rings to work well. Does anyone know if it will work well with smaller differences, like
    a 48/38/26? Or is it a better idea to use an Ultegra triple der? If so, will the Ultega der work OK
    with the DA triple shifter?

  2. Quoted message said:

    I recall reading somewhere that the DA triple front der needs a 14 tooth difference between the
    big and middle rings to work well. Does anyone


    know if

    Quoted message said:

    it will work well with smaller differences, like a 48/38/26? Or is it a


    better

    Quoted message said:

    idea to use an Ultegra triple der? If so, will the Ultega der work OK


    with the

    Quoted message said:

    DA triple shifter?

    My guess is that the back plate of a DuraAce triple front derailleur is going to run into the middle
    chainring if you're only running a 10-tooth difference. Another issue is that the curvature of the
    derailleur is made for a 53t large chainring, so that rear end of the derailleur (the part closest
    to the rear hub) is going to be kinda high in the air (above the chainring) which might make for
    difficult shifting in some combos.

    I haven't yet tried an Ultegra front derailleur with a DuraAce triple lever, but it may not be
    compatible, since the DuraAce lever is built with trim capability in all three chainrings, while the
    Ultegra performs this for only the two smaller chainrings, thus the derailleur is designed a bit
    differently.

    --Mike-- Chain Reaction Bicycles chainreactionbicycles.comchainreactionbicycles.com

  3. saltytri-<< I recall reading somewhere that the DA triple front der needs a 14 tooth difference
    between the big and middle rings to work well. Does anyone know if it will work well with smaller
    differences, like a 48/38/26?

    DA triple fder and shifters very finicky about cranks-Don't know if it will work with a different
    crank and not sure the DA left shifter will work with a ultegra triple fder...but try it.

    We tried the DA triple shifter/crank with an ultegra and it didn't work(didn't have the DA
    in stock).

    The entire DA triple kit works 'okay' but doesn't like to have stuff swapped out.

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

  4. Thanks, Mike and Peter. Looks like I'd better not fool with Shimano's "Grand Plan for the Universe"
    this time.

  5. I'm currently using an Ultegra triple front derailer with 50-40-28 with good luck (TA crank). Also
    using Ultgera brifters.

    Kyle

    "Saltytri" <[email hidden]> wrote in message "]news:[email hidden]...

    Quoted message said:

    Thanks, Mike and Peter. Looks like I'd better not fool with Shimano's


    "Grand

    Quoted message said:

    Plan for the Universe" this time.

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