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  1. #1
    Senior Member
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    C & V bike upgrade questions

    I am planning to replace the biopace chainring with a compact chanring, do i need to replace the FD to work with that?

    also, the bike does not have hoods, the levers are Shimano SLR, what hoods can i buy to fit over the brake levers?

    Thanks

  2. #2
    Tuc
    Tuc is offline
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    Often the Shimano SIS FD on the Biopace models for road use was a longer cage type which should fit about any modern chainring. The mountain bike and other multiuse ones might be the short cage. Try it and see how it lines up. It should generally follow the curve of the chainring, but even if it doesn't try riding with it. A lighter narrower chain could help you as well.

  3. #3
    Senior Member RobbieTunes's Avatar
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    FD will generally work fine, actually better, in some cases.
    Look for SLR hoods used on eBay, or even a set of brake levers that already have them..
    Robbie ♪♫♪...☻
    You will not believe how fast I used to be...

    1979 Centurion Semi Pro
    1982 Lotus Classique
    1985 Cinelli Equipe Centurion
    1985 Eddy Merckx Corsa Extra
    1987 D'Arienzo (Basso)
    1995 Hot Tubes TT
    1995 Trek OCLV 5500
    1997 Kestrel 200SCi
    1998 Kestrel KM 40 Airfoil
    2004 Quintana Roo Kilo
    2006 Cinelli XLR8R-2
    2013 Eddy Merckx EMX-3

  4. #4
    feros ferio John E's Avatar
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    My mountain bike came w/ a biopace center ring, which I replaced w/ a round one. The front derailleur works well on 48-40-28 and pretty well on 48-40-24, as long as I am careful on the 24-to-40 shift.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

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