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  1. #1
    Have bike, will travel Barrettscv's Avatar
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    Shimano braze-on front derailleur adapter clamps, any good?

    I own a braze-on front derailleur and then purchase a frameset that requires a clamp-on front derailleur. Shimano offers a clamp that allows me to use the derailleur I already own.

    I can buy the clamp for $15. I could also buy a new front derailleur with an integrated clamp for about $25.

    Is the clamp, with a braze-on front derailleur, as stable and secure as the integrated front derailleur?

  2. #2
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    Barrettscv, I use an adapter clamp on my triple roadie and prefer it to a clamp-on FD. One benefit is you can adjust FD height without moving the clamp, which can possibly damage the seat tube's paint.

    Brad

  3. #3
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    Quote Originally Posted by bradtx View Post
    Barrettscv, I use an adapter clamp on my triple roadie and prefer it to a clamp-on FD. One benefit is you can adjust FD height without moving the clamp, which can possibly damage the seat tube's paint.

    Brad
    I use braze-on front derailleurs with adapter clamps by choice. The adapters are every bit as solid and stable as a clamp-on fd and more versatile.

    Shimano's own adapter does not let you do any alignment or height adjustment with out moving the clamp as the derailleur is bolted to it solidly and in a fixed position. However, once you get the height and alignment set, you can remove and replace the derailleur itself, say for detail cleaning, with out having to do any readjustment.

  4. #4
    Have bike, will travel Barrettscv's Avatar
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    Quote Originally Posted by bradtx View Post
    Barrettscv, I use an adapter clamp on my triple roadie and prefer it to a clamp-on FD. One benefit is you can adjust FD height without moving the clamp, which can possibly damage the seat tube's paint.

    Brad
    Quote Originally Posted by HillRider View Post
    I use braze-on front derailleurs with adapter clamps by choice. The adapters are every bit as solid and stable as a clamp-on fd and more versatile.

    Shimano's own adapter does not let you do any alignment or height adjustment with out moving the clamp as the derailleur is bolted to it solidly and in a fixed position. However, once you get the height and alignment set, you can remove and replace the derailleur itself, say for detail cleaning, with out having to do any readjustment.
    Thanks!

    I'll be using the clamp.

  5. #5
    Bianchi Goddess Bianchigirll's Avatar
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    Quote Originally Posted by Barrettscv View Post
    Thanks!

    I'll be using the clamp.
    which clamp?
    Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SS, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  6. #6
    Have bike, will travel Barrettscv's Avatar
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    Quote Originally Posted by Bianchigirll View Post
    which clamp?
    Front Derailleur Clamp

    34.9 Clamp Size
    Fits Braze-on Front Derailleurs

    Manufacturer: Shimano
    Manufacturer Part #: Y57Y91100

  7. #7
    Bianchi Goddess Bianchigirll's Avatar
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    Sorry I just could not resist. I used or rather installed a few of these shimanos back when I worked in shops. I have an aftermarket brazeon adapter clamp I got recently and it works pretty well.
    Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SS, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

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