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  1. #1
    Senior Member dhale50's Avatar
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    Can't shift to Big Chainring

    Couldn't find anything in search function. Ok it seems that all the rear cogs are shifting fine. When I start to shift the front chainring from small to large, the shifter wont engage (I don't hear that last "click" from my shift lever).

    When I shift, the chain will engage the large chainring (still no "click" and at this point I have not released the lever I am just pushing it in). But as soon as I release the lever it falls back down to the small ring.

    Is there an FD barrel adjuster I have to use? If so, where is it? If it makes any difference this is Campy Centaur 10 speed. I don't know if this is a shifter problem or FD issue. Thanks

  2. #2
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by dhale50 View Post
    Couldn't find anything in search function. Ok it seems that all the rear cogs are shifting fine. When I start to shift the front chainring from small to large, the shifter wont engage (I don't hear that last "click" from my shift lever).

    When I shift, the chain will engage the large chainring (still no "click" and at this point I have not released the lever I am just pushing it in). But as soon as I release the lever it falls back down to the small ring.

    Is there an FD barrel adjuster I have to use? If so, where is it? If it makes any difference this is Campy Centaur 10 speed. I don't know if this is a shifter problem or FD issue. Thanks
    Probably cable stretch. There should be an adjuster on the downtube near the headset or there should be an in-line adjuster.

    Downtube adjuster



    In-line (this one is on a brake cable)

    Stuart Black
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  3. #3
    Senior Member dhale50's Avatar
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    Thank you.

  4. #4
    Senior Member Retro Grouch's Avatar
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    Was it ever right?

    If it used to work and now it doesn't I'd agree with the "cable stretch" theory.

    If it never worked right I suspect you need to loosen your high gear limit screw about 1/4 turn.

  5. #5
    Senior Member dhale50's Avatar
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    Quote Originally Posted by Retro Grouch View Post
    Was it ever right?

    If it used to work and now it doesn't I'd agree with the "cable stretch" theory.

    If it never worked right I suspect you need to loosen your high gear limit screw about 1/4 turn.
    Yes it was right. Then I started trying to adjust the FD because I shifted while pedaling (big to small) and the chain dropped. Now I can't get the thing to shift back into the big.

    Also, I can't find a downtube or inline adjuster on these Campy cables. Is this Campy specific?

  6. #6
    Senior Member Retro Grouch's Avatar
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    Quote Originally Posted by dhale50 View Post
    Yes it was right. Then I started trying to adjust the FD because I shifted while pedaling (big to small) and the chain dropped. Now I can't get the thing to shift back into the big.

    Also, I can't find a downtube or inline adjuster on these Campy cables. Is this Campy specific?
    Some bikes don't have a front derailleur barrel adjuster.

    The first thing I would do would be to try the 1/4 turn on the high limit screw. Believe it or not, sometimes if that screw is too tight it can make your chain overshift your small chainring, so it might solve both problems.

    If that doesn't do it, put the chain on your small ring, disconnect your shift cable and shift into your lowest front shifter position. Pull the cable just taut with a needle nose pliers and reattach it.

  7. #7
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by Retro Grouch View Post
    Some bikes don't have a front derailleur barrel adjuster.

    The first thing I would do would be to try the 1/4 turn on the high limit screw. Believe it or not, sometimes if that screw is too tight it can make your chain overshift your small chainring, so it might solve both problems.

    If that doesn't do it, put the chain on your small ring, disconnect your shift cable and shift into your lowest front shifter position. Pull the cable just taut with a needle nose pliers and reattach it.

    And install an in-line adjuster at some point. It's pretty easy.
    Stuart Black
    Solo Without Pie. The search for pie in the Midwest.
    Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
    Days of Wineless Roads. Bed and Breakfasting along the KATY
    Twisting Down the Alley. Misadventures in tornado alley.
    An Good Ol' Fashion Appalachian Butt Whoopin'.

  8. #8
    Senior Member dhale50's Avatar
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    cool! thanks guys

  9. #9
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    Quote Originally Posted by dhale50 View Post
    Couldn't find anything in search function. Ok it seems that all the rear cogs are shifting fine. When I start to shift the front chainring from small to large, the shifter wont engage (I don't hear that last "click" from my shift lever).

    When I shift, the chain will engage the large chainring (still no "click" and at this point I have not released the lever I am just pushing it in). But as soon as I release the lever it falls back down to the small ring.

    Is there an FD barrel adjuster I have to use? If so, where is it? If it makes any difference this is Campy Centaur 10 speed. I don't know if this is a shifter problem or FD issue. Thanks
    Probably cable stretch which can be adjusted by turning front shifter in-line adjuster counterclockwise approx. 1 turn to increase cable tension. You'll have to experiment a little to get it right. Meanwhile, here's a good source of info: http://parktool.com/repair/readhowto.asp?id=75

  10. #10
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    Don't you have instructions with pictures for your front derailleur?
    You can download them here: http://www.campagnolo.com/repository...lleur_0407.pdf

    Quote:
    If the chain does not climb on the large chainring:

    * the cable is too loose: loosen the adjusting screw (C - Fig. 11) on the casing fastening block.
    * the end-of-stroke adjustment is incorrect: loosen screw (B- Fig. 11) (1/4 of a turn at a time).

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