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Old 05-21-11, 05:40 AM   #1
Barrettscv 
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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?
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Old 05-21-11, 05:45 AM   #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.

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Old 05-21-11, 05:50 AM   #3
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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.
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Old 05-22-11, 06:12 AM   #4
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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
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.
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Old 05-22-11, 07:11 AM   #5
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Thanks!

I'll be using the clamp.
which clamp?
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Old 05-22-11, 07:59 AM   #6
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which clamp?
Front Derailleur Clamp

34.9 Clamp Size
Fits Braze-on Front Derailleurs

Manufacturer: Shimano
Manufacturer Part #: Y57Y91100
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Old 05-22-11, 08:17 AM   #7
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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.
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