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will campy 9-spd front derailleur work w/ 10-spd group?(11 posts)

will campy 9-spd front derailleur work w/ 10-spd group?tarwheel
Nov 4, 2003 9:19 AM
Found a Chorus 9-speed front derailleur for sale, but I have a 10-speed group. Will it still work? I know some of the parts are interchangeable.
Yes but...the bull
Nov 4, 2003 9:51 AM
I have used a 9 speed Shimano FD on a campy 10 set up.
Campy says yes and no.
sorry-the bull
Nov 4, 2003 9:54 AM
no for Chourus
But I would disagree with campy.
I would say yes, but not as "well".
Yes but...tarwheel
Nov 4, 2003 10:56 AM
What is the "resin insert" Campy refers to?

Here's my situation. I've got a 10-speed Chorus group that's about 2.5 years old. Recently got a new frame that takes a clamp-on front derailleur, while my group has braze-on. Campy doesn't sell front derailleur clamps, so I'm using a Shimano clamp that is perfectly functional but ugly. So I've been looking for a decent used Campy clamp-on front derailleur. Found the Chorus derailleur on eBay, but it's listed as a 9-speed unit. Also found a Record 10-speed front derailleur, but the price on that will probably get bid out of my range.
how about Centaur?stratoshark
Nov 4, 2003 12:27 PM
Excel Sports has a Centaur clamp-on. I have a Daytona (pre-Centaur) 10-speed group, and the front derailleur works great. It's not Chorus if that matters, but it will work well for you.

The resin insert is a small piece that fits inside the derailleur cage, through the cut-out in the outer plate. It narrows the cage width at the front of the derailleur to compensate for the narrower 10-speed chain, in effect making a 10-speed out of a 9-speed fd.

I have wondered if bending in the outer cage plate (only at the frontward edge, not the entire length) of a 9-speed fd would work as well, but I never tried it.

how about Centaur?Leroy
Nov 4, 2003 1:39 PM
I'm using a clamp on 10 speed centaur f der for expense reasons myself. I think the 9 spd would work ok, however. It's just a little wider - the throw at the lever may be a little longer.
Yes but...mackgoo
Nov 5, 2003 7:34 AM
I think I have a Record clamp on. 31.2mm. If you want it give me a price.
thanks, but ...tarwheel
Nov 7, 2003 6:19 AM
I need a FD with a 35 mm clamp.
Have you seen these clamps?Mel Erickson
Nov 7, 2003 11:00 AM
Airbomb has several clamps made by Problem Solvers. Here's the link.{A87D5136-87D1-488E-A1DF-17745D14EC17}&Cc=1207&Tp=
re: will campy 9-spd front derailleur work w/ 10-spd group?igorn
Nov 5, 2003 3:22 AM
Marketing departments of all manufacturers (bicycle parts manufacturers are not exception) works on the same principles. They will try to convince you that you MUST buy new product because it is "better", "more compatible" it has "X,Y new functionalities" etc.

Because "front derailleur compatibility" question is very often asked on this board, I made an experiment in order to see if manufacturers claims are true (thanks to my LBS for help :).

My first test platform was Campy Chorus 10 speed with 52-42 Pinarello signed double crankset. Behind original "10 speed" Chorus FD, I checked also following derailleurs:
1. Campagnolo Mirage (9 sp)
2. Campagnolo Record (8 sp)
3. Campagnolo Super Record (dates back to 80's)
4. Shimano Ultegra (9 sp)
5. Shimano Tiagra (9 sp)
6. Shimano RSX (8 sp)
7. Shimano Exage EX 400 (7 sp)
8. Shimano FF System (I think it was first Shimano indexed group)

I've got results that were maybe surprising. I was able to set up every single derailleur so it would shift without any issues. With trim capabilities of left Campy ergo lever it was a pieace of cake. Even old Super Record FD, which is noticable narower than any other FD on this list, worked just fine for me (it produced chain rubbing only with "litle chainring-last three small cogs" and "big chainring-last two big cogs" combinations which I never use in real life).

Than I repeat everything with Shimano 8sp RSX setup with same Pinarello crankset (left STI lever was triple compatible). This time it was harder to setup everything to work fine. Because left RSX STI has only two clicks I found that with some derailleurs I need to put very low cable tension initially and than acheive proper shifting with doubleclick. But, at the end of the day, I finished with all derailleurs working.

So, you can freelly use 9sp Campy FD with 10sp group. It will work just fine. Everything behind that is just marketing/pr bs.


p.s. Sory if my English is not good enough. It is not my native language :)
you went to all that trouble to answer my question?tarwheel
Nov 5, 2003 5:44 AM
Thanks for the info. I'll have to keep looking for the FD because the eBay bidding got out of hand, as usual. Actually, my current FD is perfectly functional. I just don't like the Shimano derailleur clamp, but it's no big deal. If I can find a clamp-on FD for a decent price, I'll buy it.