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  1. #1
    Senior Member
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    2006 Raleigh Rx 1.0, 1990 Cannondale ST400, 1983 Miyata Two Ten
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    Double crankset for CX; double or triple FD?

    Hi all. I need to replace the FD on my 2007 Raleigh Rx 1.0. The stock FD, a Shimano Tiagra FD-4403, suffered a broken spring mechanism (there are multiple BF threads about this, it's pretty common with that model).

    Now, the bike came with a double crankset - TruVative Elita Cyclocross, 39/48 teeth to be exact. I'm not sure why it came with a triple FD.

    Should I buy a compatible double, or is there a particular reason the manufacturer used a triple, meaning I should replace it with a triple?

    Suggestions for replacements are also welcomed. I'm running a 9-speed cassette, and need a 28.6mm clamp on model (bottom pull). I don't really want to buy another FD-4403. They're very hard to find thanks to Shimano's constant "upgrades," and it's obviously a flawed design. Right now I'm looking at a newer Tiagra design, or perhaps even a downgrade to Sora.

    Thanks!

  2. #2
    Have bike, will travel Barrettscv's Avatar
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    Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Origin8 monstercross, Pedal Force CG2 and CX2
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    The double will be better, no reason to use a triple FD. I would go to Tiagra, but a Sora will work well enough.

  3. #3
    coprolite fietsbob's Avatar
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    deeper back plate pushes up a wider difference between chainring sizes. better,
    for the upshifts

    Triple FD , probably cost less than compact doubles, for the thousands
    that bike building factories buy.
    a compact double FD is made to go with the 34/50 combination doubles.
    that may do the trick ..
    Last edited by fietsbob; 09-25-11 at 11:58 AM.

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