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  1. #1
    Senior Member Barchettaman's Avatar
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    Flat bar road bike, MTB shifter for the front derailleur?

    I am converting a road frame thatīs slightly too big for me into a flat bar.

    Set up is to be 3x8, all the bits are waiting to go on.

    The LH shifter came off a wrecked commuter bike with a top pull triple front derailleur.

    I want to run it with a standard īroadī down pull triple front derailleur as the frame doesnīt have any top tube or seat tube cable stops, and thatīs the only FD I have lying around.

    Will it work?
    Thanks in advance. I searched but couldnīt find anything specific.

  2. #2
    Senior Member Barchettaman's Avatar
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    I should also mention that I have a cheap thumb shifter kicking around in the parts bin so I could just use that for the front derailleur and forget about a triple indexed shifter.

    By the way I have other drop bar road bikes which I love, just looking to make something of this frame.

  3. #3
    Quirky Grifter LesterOfPuppets's Avatar
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    If it's a multi-click (like a current Sram Attack for instance) or friction shifter then I think you could probably get it to work. If it's a three or four position index shifter then I wouldn't hold out much hope for making that work, assuming you're talking about a road front derailleur.

    EDIT: actually, I guess I've been on touring setups with trekking bars similar to the setup you're talking about that worked OK. So it might work out with a variety of shifters and FDs.
    Last edited by LesterOfPuppets; 11-17-11 at 04:04 AM.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Lemond Buenos Aires Triple

  4. #4
    AEO
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    Senior Member AEO's Avatar
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    there are flat bar shifters for road FDs.

    but for the cheap method, that thumb shifter should work plenty fine.
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
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  5. #5
    Senior Member Barchettaman's Avatar
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    I think I will go with the cheap arse method, it would be annoying to cable everything up and find it doesnt work.

  6. #6
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    Yeah, go with friction shifting.

    THe other option would be to get a bottom pull mtb front derailleur. THese can cost as little as ~15 dollars (what is that in euros? 10? 25,000?)

  7. #7
    Senior Member Barchettaman's Avatar
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    Looking for bottom pull MTB front derailleurs, the max front chainring size is 48, and the FSA chainring on my triple is 53.

    Does anyone make a suitable MTB front mech for this size of chainring?

    Or will I have to take a downpull MTB front mech for a date with the grinder at work?

    Thanks all
    simon
    Last edited by Barchettaman; 11-22-11 at 05:08 AM.

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