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  1. #1
    Senior Member
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    Fr.Derailleur or R.Derailleur first?

    I just replaced my drivetrain and all I have left to do is the fine tuning. Is it better to do the front or rear derailleur first?

  2. #2
    You need a new bike supcom's Avatar
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    It makes no difference. If one is really bad like the chain rubs against the front derailleur, then do it first. But that would not be "fine tuning".

  3. #3
    Tom (ex)Builder twahl's Avatar
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    I generally do the rear first. Start on the small chainring, work the largest rear gear, and go from there. Park Tool web site or Sheldonbrown.com will guide you. I build bikes, so I have a sort of workaround procedure that is a pretty set rythm for me, not sure if my guideance fits in with the experts' thoughts.
    Tom

    "It hurts so good..."

  4. #4
    Gone, but not forgotten Sheldon Brown's Avatar
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    Quote Originally Posted by azwhelan
    I just replaced my drivetrain and all I have left to do is the fine tuning. Is it better to do the front or rear derailleur first?
    Rear.

    The position of the front has no effect on the rear, but the position of the rear does affect the front adjustment.

    You need to have the rear shifting full range before you can adjust the front.

    See: http://sheldonbrown.com/derailer-adjustment for more...

    Sheldon "Occasionally Uses Derailers" Brown
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  5. #5
    Let's Go! SilentShifter's Avatar
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    Replace the REAR first. That is the one we use the most.
    2007 Ridley Damocles!

  6. #6
    Senior Member corny's Avatar
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    Fine tune the rear first - you need the gears adjusted properly to work the front.
    Dawes Giro 300 '02-'05
    Cannondale R1000 Compact Drive '05-Present

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