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  1. #1
    Senior Member
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    Apr 2013
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    Glendale, CA
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    2013 Giant TCR Advanced SL4, 1989 Centurion Ironman Master Dave Scott
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    Front derailleur adjustment help

    Shimano 600 FD with DT shifters on my Centurion. When I'm in the big chain ring after a minute or two I start to get chain rub. I can trim the shifter and then I can pedal smooth with no noise but after another minute or two I need to trim it again. So basically seems like the lever is moving on it's own/not staying in one place. Is my cable tension too tight? Is this a limit adjustment? Is this just nature of the beast with friction shifters?
    http://www.pedalroom.com/members/rms13

  2. #2
    Senior Member alcjphil's Avatar
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    Jun 2002
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    Montreal
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    Your friction shifters don't have enough friction. There is usually an adjustment screw to increase the friction

  3. #3
    Senior Member
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    Oct 2004
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    Cannondale CAAD10 Team, Giant TCR
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    Tighten the attachment screws that hold it onto the downtube clamp. Most (if not all) have a keyring knob on the screw itself so you can tighten it without tools.

  4. #4
    Senior Member
    Join Date
    Apr 2013
    Location
    Glendale, CA
    My Bikes
    2013 Giant TCR Advanced SL4, 1989 Centurion Ironman Master Dave Scott
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    Thanks for the responses. I tightened the screw on the shifter. First bike with DT shifters so I didn't even know that was an adjustment point
    http://www.pedalroom.com/members/rms13

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