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  1. #1
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    Differnce in shim amount in 105 and tiagra derailleurs?

    I just replaced my Tiagra front derailleur with a 105 front derailleur, both are double but I am finding it a little more difficult to adjust the 105. The Tiagra seems to have 3 shim settings but it seems that the 105 has 4 shim settings which seems to be a little too much because when shifting to the large chainring the chain shifts right over it. I've tried using the high-lower adjustment screws but have not had much luck.

    Dave

  2. #2
    Listen to me powers2b's Avatar
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    Where's that bunny with the pancake on his head?

  3. #3
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    Quote Originally Posted by powers2b
    Where's that bunny with the pancake on his head?
    bunny?

  4. #4
    Gone, but not forgotten Sheldon Brown's Avatar
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    Quote Originally Posted by UNHBiker
    I just replaced my Tiagra front derailleur with a 105 front derailleur, both are double but I am finding it a little more difficult to adjust the 105. The Tiagra seems to have 3 shim settings but it seems that the 105 has 4 shim settings which seems to be a little too much because when shifting to the large chainring the chain shifts right over it. I've tried using the high-lower adjustment screws but have not had much luck.
    It's not quite clear to me what you mean by "shim settings" but I think you're speaking of "trim settings." These are in the shifter, not the derailer, so changing the derailer would have no effect, aside from the fact that a new derailer does need to be adjusted.

    I have an article on Derailer Adjustment http://sheldonbrown.com/derailer-adjustment that should help you fix this problem.
    Code:
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    |  The important thing is not to stop questioning.  |
    |   Curiosity has its own reason for existing.      |
    |                                --Albert Einstein  |
    +---------------------------------------------------+
    [COLOR=blue][CENTER][b]Harris Cyclery, West Newton, Massachusetts[/b]
    Phone 617-244-9772, FAX 617-244-1041
    [URL= http://harriscyclery.com] http://harriscyclery.com[/URL]
    Hard-to-find parts shipped Worldwide
    [URL=http://captainbike.com]http://captainbike.com[/URL]
    Useful articles about bicycles and cycling
    [URL=http://sheldonbrown.com]http://sheldonbrown.com[/URL] [/CENTER] [/COLOR]

  5. #5
    Senior Member sydney's Avatar
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    Quote Originally Posted by UNHBiker
    I just replaced my Tiagra front derailleur with a 105 front derailleur, both are double but I am finding it a little more difficult to adjust the 105. The Tiagra seems to have 3 shim settings but it seems that the 105 has 4 shim settings which seems to be a little too much because when shifting to the large chainring the chain shifts right over it. I've tried using the high-lower adjustment screws but have not had much luck.

    Dave
    As The man says. The trim is in the shifters. www.parktool.com repair section has the drill on derailer adjustment.Start at the beginning with proper position and aalignment.Also, if the derailer is new, Shimanos instructions are as good as it gets.

  6. #6
    Listen to me powers2b's Avatar
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    Quote Originally Posted by LowCel

    There he is!

  7. #7
    Get the stick. darkmother's Avatar
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    He looks extra tasty.

  8. #8
    cab horn
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    Lollerskates.

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