Cycling Equipment · Public discussion

Dura Ace 7800 Front Derailleur Installation/Adjustment Question

Started by Mauiguy · · Last activity · 4 posts · 952 views

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Cycling Equipment
Published
19 April 2004
Last activity
19 April 2004
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Mauiguy
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  1. Greetings,

    I just installed a new D/A 10sp front derailler for the
    first time. Noticed when shifting, the feel of the shift
    lever when going to the big chainring was very stiff -
    nothing like the buttery smooth action when shifting the
    rear derailler.

    Most disturbing was the loud sound when shifting from the
    big to the small chainring. This isn't just a loud click but
    almost a bang, It vibrates the entire frame and makes a
    really harsh jolt felt through the crankarm. Not only that
    but it feels like it takes way too much effort to move the
    lever (going in either direction).

    This can't be right. It's so different from the rear
    derailler's super smooth action, something must be wrong.

    Does anyone have any ideas? Many thanks!

    -Gary

  2. gary-<< I just installed a new D/A 10sp front derailler for
    the first time. Noticed when shifting, the feel of the shift
    lever when going to the big chainring was very stiff -

    Quoted message said:
    Quoted message said:

    <BR><BR>

    The 10s left lever has a higher mech advantage because it is
    longer. Ensure the BB guide is clean and lubed. Also ensure
    the inner wire and housing (REc 5mm!!) is smooth..if all
    above is set, it is as good as it's gonna be. The 10s front
    der does seem to have a stronger spring...

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

  3. It does pop down pretty hard, it should shift up pretty
    easily though (atleast it does on my 2 DA10 bikes).

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

    Quoted message said:

    Greetings,

    I just installed a new D/A 10sp front derailler for the
    first time. Noticed when shifting, the feel of the shift
    lever when going to the big chainring was very stiff -
    nothing like the buttery smooth action when shifting the
    rear derailler.

    Most disturbing was the loud sound when shifting from the
    big to the small chainring. This isn't just a loud click
    but almost a bang, It vibrates the entire frame and makes
    a really harsh jolt felt through the crankarm. Not only
    that but it feels like it takes way too much effort to
    move the lever (going in either direction).

    This can't be right. It's so different from the rear
    derailler's super smooth action, something must be wrong.

    Does anyone have any ideas? Many thanks!

    -Gary

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  4. [email hidden] (Mauiguy) wrote in message news:<[email hidden]>...

    Quoted message said:


    .. I just installed a new D/A 10sp front derailler for the
    first time. Noticed when shifting, the feel of the shift
    lever when going to the big chainring was very stiff -
    nothing like the buttery smooth action when shifting the
    rear derailler. ...>

    1. Mount on the correct (side) of the pivot?

    2. Cable is too tight?

    I would give DA10 a try if Shimano drops the price of the
    STIs by $100.

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