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.

On Thu, 10 Feb 2005 01:37:07 -0800, 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.

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

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

wrote in message ...
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?

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

wrote in message
...
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

wrote in message
oups.com...
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

wrote in message
...
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?

On 12 Feb 2005 22:26:42 -0800, 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" wrote in message
...
On 12 Feb 2005 22:26:42 -0800, 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.