Campy Front Derailleur with Shimano STI shifter?

Will a Campy front derailleur work with a Shimano STI Shifter? The reason
that I am asking is, that I want to use 10 speed Shimano STI drivetrain with
a compact road crankset (110 bolt circle with 50/34 chainrings). Campy seems
to be the only one making a compact specific front derailleur. I main
concern is will the trim function of Shimano shifter work well with a Campy
front?

Thanks in advance.

 

[Paul Kopit]

On Thu, 10 Feb 2005 01:37:07 -0800, <[email protected]> wrote:

>Will a Campy front derailleur work with a Shimano STI Shifter? The reason
>that I am asking is, that I want to use 10 speed Shimano STI drivetrain with
>a compact road crankset (110 bolt circle with 50/34 chainrings). Campy seems
>to be the only one making a compact specific front derailleur. I main
>concern is will the trim function of Shimano shifter work well with a Campy
>front?
>
>Thanks in advance.
>

You don't need the compact specific front derailleur. Any Campy front
derailleur shifts a 50/34 fine. Shimano front derailleurs like 105 or
DA do fine as well. I'm not certain that the Campy front deralleur
will index properly with STI.

 

[Sheldon Brown]

Paul Kopit quoted somebody:

>>Will a Campy front derailleur work with a Shimano STI Shifter? The reason
>>that I am asking is, that I want to use 10 speed Shimano STI drivetrain with
>>a compact road crankset (110 bolt circle with 50/34 chainrings). Campy seems
>>to be the only one making a compact specific front derailleur. I main
>>concern is will the trim function of Shimano shifter work well with a Campy
>>front?

and replied:

> You don't need the compact specific front derailleur. Any Campy front
> derailleur shifts a 50/34 fine. Shimano front derailleurs like 105 or
> DA do fine as well. I'm not certain that the Campy front deralleur
> will index properly with STI.

The front indexing issue is a problem with _triple_ cranks, because the
middle position is regulated by the indexing.

With a double, compact or full-sized, it isn't an issue, since the
"indexing" is regulated by the derailer's limit stop screws irrespective
of any indexing features of the shifter.

Sheldon "Gopher It!" Brown
+-----------------------------------------------------------+
| Always listen to the experts. |
| They'll tell you what can't be done, and why. |
| Then do it. --Robert A. Heinlein |
+-----------------------------------------------------------+
Harris Cyclery, West Newton, Massachusetts
Phone 617-244-9772 FAX 617-244-1041
http://harriscyclery.com
Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com

 

[Nick Payne]

My wife's touring bike uses Ultegra STI levers with a triple chainset using
44-34-24 chainrings. When the Shimano front derailleur got bent by baggage
handlers I put on a Record triple FD (because I happened to have one lying
around) and everything continued to work fine. With only two chainrings it
should be even easier. I have another bike that uses 48-34 chainrings, also
with Ultegra STI levers, and the derailleur on that is an old Suntour
XC-4050 that I fished out of my bits box.

But anyway, "compact specific" front derailleur is a solution to a problem
that doesn't exist. It's just marketing designed to separate credulous
cyclists from their money.

Nick

<[email protected]> wrote in message news:[email protected]...
> Will a Campy front derailleur work with a Shimano STI Shifter? The reason
> that I am asking is, that I want to use 10 speed Shimano STI drivetrain
> with
> a compact road crankset (110 bolt circle with 50/34 chainrings). Campy
> seems
> to be the only one making a compact specific front derailleur. I main
> concern is will the trim function of Shimano shifter work well with a
> Campy
> front?

 

[[email protected]]

cel,

The trim function of your Shimano will work fine with the Campy front
derailleur. The compact specific front deraillure is not a marketing
gimmick. If you have a braze on, a standard front derailleur cage will
not be able to get low enough to allow the recommended 1-2 mm clearance
above the large chainring. Shifting works but not as well, with more
chain drops. I have a FSA compact 50-34. I recently replaced my
standard DurAce 9 speed front derailleur with a Campy Chorus compact
specific 10 speed front derailleur with remarkable improvement in
shifting.

Ed




Nick Payne wrote:
> My wife's touring bike uses Ultegra STI levers with a triple chainset
using
> 44-34-24 chainrings. When the Shimano front derailleur got bent by
baggage
> handlers I put on a Record triple FD (because I happened to have one
lying
> around) and everything continued to work fine. With only two
chainrings it
> should be even easier. I have another bike that uses 48-34
chainrings, also
> with Ultegra STI levers, and the derailleur on that is an old Suntour

> XC-4050 that I fished out of my bits box.
>
> But anyway, "compact specific" front derailleur is a solution to a
problem
> that doesn't exist. It's just marketing designed to separate
credulous
> cyclists from their money.
>
> Nick
>
> <[email protected]> wrote in message
news:[email protected]...
> > Will a Campy front derailleur work with a Shimano STI Shifter? The
reason
> > that I am asking is, that I want to use 10 speed Shimano STI
drivetrain
> > with
> > a compact road crankset (110 bolt circle with 50/34 chainrings).
Campy
> > seems
> > to be the only one making a compact specific front derailleur. I
main
> > concern is will the trim function of Shimano shifter work well with
a
> > Campy
> > front?

 

Thanks for the personal experience with this type of setup. I will get the
compact crank and derailleur with confidence that it will work. I did notice
that with the standard 53 ring, the standard derailleur didn't have much
more drop on the front "braze on" to reach a 50. It makes sense to have a
lower reach on the compact version.

cel

<[email protected]> wrote in message
news:[email protected]...
> cel,
>
> The trim function of your Shimano will work fine with the Campy front
> derailleur. The compact specific front deraillure is not a marketing
> gimmick. If you have a braze on, a standard front derailleur cage will
> not be able to get low enough to allow the recommended 1-2 mm clearance
> above the large chainring. Shifting works but not as well, with more
> chain drops. I have a FSA compact 50-34. I recently replaced my
> standard DurAce 9 speed front derailleur with a Campy Chorus compact
> specific 10 speed front derailleur with remarkable improvement in
> shifting.
>
> Ed
>
>
>
>
> Nick Payne wrote:
> > My wife's touring bike uses Ultegra STI levers with a triple chainset
> using
> > 44-34-24 chainrings. When the Shimano front derailleur got bent by
> baggage
> > handlers I put on a Record triple FD (because I happened to have one
> lying
> > around) and everything continued to work fine. With only two
> chainrings it
> > should be even easier. I have another bike that uses 48-34
> chainrings, also
> > with Ultegra STI levers, and the derailleur on that is an old Suntour
>
> > XC-4050 that I fished out of my bits box.
> >
> > But anyway, "compact specific" front derailleur is a solution to a
> problem
> > that doesn't exist. It's just marketing designed to separate
> credulous
> > cyclists from their money.
> >
> > Nick
> >
> > <[email protected]> wrote in message
> news:[email protected]...
> > > Will a Campy front derailleur work with a Shimano STI Shifter? The
> reason
> > > that I am asking is, that I want to use 10 speed Shimano STI
> drivetrain
> > > with
> > > a compact road crankset (110 bolt circle with 50/34 chainrings).
> Campy
> > > seems
> > > to be the only one making a compact specific front derailleur. I
> main
> > > concern is will the trim function of Shimano shifter work well with
> a
> > > Campy
> > > front?
>

 

[dianne_1234]

On 12 Feb 2005 22:26:42 -0800, [email protected] wrote:

>The compact specific front deraillure is not a marketing
>gimmick. If you have a braze on, a standard front derailleur cage will
>not be able to get low enough to allow the recommended 1-2 mm clearance
>above the large chainring. Shifting works but not as well, with more
>chain drops. I have a FSA compact 50-34. I recently replaced my
>standard DurAce 9 speed front derailleur with a Campy Chorus compact
>specific 10 speed front derailleur with remarkable improvement in
>shifting.
>
>Ed

Just to be sure, are you saying that the vertical distance between the
mounting bolt and the edge of the cage is greater on the compact
derailleur than a normal one? Thanks.

 

That's is what I think Ed said. I hope that is the case. I did notice from
the pictures of the compact derailleur that the inner cage plated seem to be
much lower than a normal deraileur. My guess is to better pick up the
smaller inner chainring.

cel


"dianne_1234" <[email protected]> wrote in message
news:[email protected]...
> On 12 Feb 2005 22:26:42 -0800, [email protected] wrote:
>
> >The compact specific front deraillure is not a marketing
> >gimmick. If you have a braze on, a standard front derailleur cage will
> >not be able to get low enough to allow the recommended 1-2 mm clearance
> >above the large chainring. Shifting works but not as well, with more
> >chain drops. I have a FSA compact 50-34. I recently replaced my
> >standard DurAce 9 speed front derailleur with a Campy Chorus compact
> >specific 10 speed front derailleur with remarkable improvement in
> >shifting.
> >
> >Ed
>
> Just to be sure, are you saying that the vertical distance between the
> mounting bolt and the edge of the cage is greater on the compact
> derailleur than a normal one? Thanks.
>