Cycling Equipment · Public discussion

Der / Shift combo - again!?

Started by Dan Brussee · · Last activity · 4 posts · 493 views

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Cycling Equipment
Published
16 September 2003
Last activity
17 September 2003
Original author
Dan Brussee
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  1. I absolutely KNOW I have seen the answer to this, but I want to be sure I understand it right. I
    have a road frame set up with MTB cranks and flat bars (Deore shifters w/8sp). I am considering
    going the full road setup and want to know what options I might have.

    Current Cranks: Bontrager 46/32/22 MTB Shifters: Deore 8sp FDer: Deore BP/TS RDer: Shimano 105 long
    range Cassette: SRAM 8sp

    Cheap Option Leave cranks, FDer, RDer Shifters: Shimano 105 9sp Cassette: ??? brand 9sp

    Upgrade Option Cranks: 9sp (Sora, 105, Centaur??) Triple Shifters: Shimano 105 9sp FDer: (Something
    that fits) Cassette: ??? brand 9sp

    Questions
    1. Can the 105 shifters move the existing Deore FDer correctly? I understand this may be a problem.

    2. Will a Centaur front crank work well with shimano shifters?

    3. The rear tire to frame clearance on the frame is pretty tight. I originally had an LX BS/BP FDer
    on it, but the tire was within a millimeter of the cable attachment bolt and rubbed under load.
    The existing Deore der works since it has a top swing and the mounting is much lower on the
    frame. If I can keep my existing cranks, I will probably want to keep the FDer too - but this
    assumes the STI shifters can pull the FDer correctly. If I need to switch cranks, I will need to
    find a FDer that fits the gap in the frame <sigh>. Allways something!!!! If it helps, the frame
    is a Marin Argenta with a 31.8 seat tube.

    TIA, Dan

  2. Consider keeping the crank/FD setup you have so worked to match; an11t cassette will net 113gear
    inches. Both your derailleurs will work with Campy. 10sp. The rear works best when you bypass the
    normal clamp zone and clamp @ >90deg to that groove. Somewhere there is a website that explains
    this,I know someone on this group can direct you. good luck, Tom

    --
    Bruni Bicycles "Where art meets science" brunibicycles.com
    410.426.3420 Dan Brussee <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    I absolutely KNOW I have seen the answer to this, but I want to be sure I understand it right. I
    have a road frame set up with MTB cranks and flat bars (Deore shifters w/8sp). I am considering
    going the full road setup and want to know what options I might have.

    Current Cranks: Bontrager 46/32/22 MTB Shifters: Deore 8sp FDer: Deore BP/TS RDer: Shimano 105
    long range Cassette: SRAM 8sp

    Cheap Option Leave cranks, FDer, RDer Shifters: Shimano 105 9sp Cassette: ??? brand 9sp

    Upgrade Option Cranks: 9sp (Sora, 105, Centaur??) Triple Shifters: Shimano 105 9sp FDer:
    (Something that fits) Cassette: ??? brand 9sp

    Questions
    1. Can the 105 shifters move the existing Deore FDer correctly? I understand this may be a
    problem.

    2. Will a Centaur front crank work well with shimano shifters?

    3. The rear tire to frame clearance on the frame is pretty tight. I originally had an LX BS/BP
    FDer on it, but the tire was within a millimeter of the cable attachment bolt and rubbed under
    load. The existing Deore der works since it has a top swing and the mounting is much lower on
    the frame. If I can keep my existing cranks, I will probably want to keep the FDer too - but
    this assumes the STI shifters can pull the FDer correctly. If I need to switch cranks, I will
    need to find a FDer that fits the gap in the frame <sigh>. Allways something!!!! If it helps,
    the frame is a Marin Argenta with a 31.8 seat tube.

    TIA, Dan

  3. Dan Brussee said:

    I absolutely KNOW I have seen the answer to this, but I want to be sure I understand it right. I
    have a road frame set up with MTB cranks and flat bars (Deore shifters w/8sp). I am considering
    going the full road setup and want to know what options I might have.

    Quoted message said:

    Cheap Option Leave cranks, FDer, RDer Shifters: Shimano 105 9sp Cassette: ??? brand 9sp

    A mountain front derailleur will not shift correctly with STI. Their mountain derailleurs require
    more cable pull than the road versions per shift. I have no idea why. There is one road derailleur
    that will work well with your current cranks, but I forget the name.

    Quoted message said:

    1. Can the 105 shifters move the existing Deore FDer correctly? I understand this may be a
    problem.

    problem. I have made it work the other way (mountain shifters, road derailleur), but too much throw
    is easier to restrain with the limit screws than too little.

    --

    David L. Johnson

    __o | I don't believe you, you've got the whole damn thing all wrong. _`\(,_ | He's not the kind
    you have to wind-up on Sundays. --Ian (_)/ (_) | Anderson

  4. David L. Johnson said:
    Dan Brussee said:

    I absolutely KNOW I have seen the answer to this, but I want to be sure I understand it right. I
    have a road frame set up with MTB cranks and flat bars (Deore shifters w/8sp). I am considering
    going the full road setup and want to know what options I might have.

    Quoted message said:

    Cheap Option Leave cranks, FDer, RDer Shifters: Shimano 105 9sp Cassette: ??? brand 9sp

    A mountain front derailleur will not shift correctly with STI. Their mountain derailleurs require
    more cable pull than the road versions per shift. I have no idea why. There is one road derailleur
    that will work well with your current cranks, but I forget the name.

    Quoted message said:

    1. Can the 105 shifters move the existing Deore FDer correctly? I understand this may be a
    problem.

    problem. I have made it work the other way (mountain shifters, road derailleur), but too much throw
    is easier to restrain with the limit screws than too little.

    Thanks for the info. I thought that was what I remembered, so the switch will have me purchasing...

    New cranks New FDer New Shifter New Cassette <sigh

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