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  1. #1
    No one carries the DogBoy
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    FD Compatibility and campy QS definition

    I've got a bike that I'm moving to a campy 10s drivetrain. I have the 10sp shifters (QS, whatever that is), RD, Hub & Cassette. I'm wondering if I need to do anything with the front derailleur. I'll be running an FSA Triple crank (FSA says it'll work with Campy 10). Right now I have a 105 triple FD designed for 9-sp systems. Do I need to get a new FD to make it work well with the 10 sp chain, or will it be fine.

    The shifters I have are Record ergos with QS for the left shifter. Can someone tell me what QS is, and if I'll have problems running a non-QS derailleur? Even if I do find I need a 10 sp FD, I've not found any QS triple FDs.

  2. #2
    Senior Member
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    Quote Originally Posted by DogBoy
    I've got a bike that I'm moving to a campy 10s drivetrain. I have the 10sp shifters (QS, whatever that is), RD, Hub & Cassette. I'm wondering if I need to do anything with the front derailleur. I'll be running an FSA Triple crank (FSA says it'll work with Campy 10). Right now I have a 105 triple FD designed for 9-sp systems. Do I need to get a new FD to make it work well with the 10 sp chain, or will it be fine.

    The shifters I have are Record ergos with QS for the left shifter. Can someone tell me what QS is, and if I'll have problems running a non-QS derailleur? Even if I do find I need a 10 sp FD, I've not found any QS triple FDs.
    QS means "quickshift" and it means the shifter lever doesn't move quite as far to complete the shift. Also, QS front derailleurs have a modified geometry to match.

    You WILL need a Campy FD but not because of the 10-speed chain or FSA crank. I had no end of problems trying to use a Shimano 105 FD with pre-QS 10-speed Record Ergos as the spring tension is significantly higher than a Campy FD and the ratchet didn't hold it well. Get the right FD.

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