shimano front derailleur 6603 compatibility concerns

[[email protected]]

Would the shimano ultegra 6603 triple front derailleur work ok with a
9s cassette (even though it states it should be paired with 10s
cassettes) ?

 

[[email protected]]

On Sep 4, 11:02 pm, [email protected] wrote:
> Would the shimano ultegra 6603 triple front derailleur work ok with a
> 9s cassette (even though it states it should be paired with 10s
> cassettes) ?

I'm asking because that's the only front derailleur that seems
available in the ultegra series which might fit

 

[Sheldon Brown]

[email protected] wrote:
> Would the shimano ultegra 6603 triple front derailleur work ok with a
> 9s cassette (even though it states it should be paired with 10s
> cassettes) ?

Yes, the number of speeds on the cassette has little to do with it.

The important difference betwixt the "9-speed" and "10-speed" triple
front derailers is that the "9-speed" version was optimized for a
52-42-30, while the "10-speed" is optimized for 52-39-30.

If you're not hung up on the Ultegra label, and assuming you have a
52-42-* crank, you would likely do better with a 105 or Tiagra
derailer. These are optimized for 50-39-* chainrings, an 11 tooth gap
instead of 13, and closer to the 10 tooth difference from your 52-42-*
crank (if that's what you have.)

Sheldon "Don't Get Hung Up On Labels" Brown
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[Nate Knutson]

On Sep 4, 8:10 pm, [email protected] wrote:
> On Sep 4, 11:02 pm, [email protected] wrote:
>
> > Would the shimano ultegra 6603 triple front derailleur work ok with a
> > 9s cassette (even though it states it should be paired with 10s
> > cassettes) ?
>
> I'm asking because that's the only front derailleur that seems
> available in the ultegra series which might fit

apparently 10spd shimano fds don't work well with 9sp sti because of a
change in the amount of cable pull they want.

i haven't used the combination with a friction frt shifter or read
reports from anyone who has, but i assume you'd have to trim more in
that case because of the narrower plate, and this would probably be
annoying enough to outweigh any advantage of it being a higher end
front derailer.

there is kinda a stupid gaping void left right now in terms of high
quality, easily available, current production 9speed triple road fds.
ird alpina, tiagras and....?

 

[Nate Knutson]

On Sep 4, 9:16 pm, Nate Knutson <[email protected]> wrote:
> On Sep 4, 8:10 pm, [email protected] wrote:
>
> > On Sep 4, 11:02 pm, [email protected] wrote:
>
> > > Would the shimano ultegra 6603 triple front derailleur work ok with a
> > > 9s cassette (even though it states it should be paired with 10s
> > > cassettes) ?
>
> > I'm asking because that's the only front derailleur that seems
> > available in the ultegra series which might fit
>
> apparently 10spd shimano fds don't work well with 9sp sti because of a
> change in the amount of cable pull they want.

err.. disregard this. it's not the cable pull of the shifters that's
different, but rather the throw of the derailer due to a change in
shape, according to some older peter c posts here. sorry!

 

[Qui si parla Campagnolo-www.vecchios.com]

On Sep 4, 9:02 pm, [email protected] wrote:
> Would the shimano ultegra 6603 triple front derailleur work ok with a
> 9s cassette (even though it states it should be paired with 10s
> cassettes) ?

shimano 10s front ders don't work well with 9s shifters..however the
opposite is not true(10s shifters and 9s front ders). Not a problem
with the chain or cogset but the shifter. Also, 6603 and 7803 front
derailleurs will not work well with 52/42/30 triples as the cage is so
long it hots the middle ring when in the largest. Samo for 105 10s FD.

 

[Die! Spammer Die!]

Ok, So what are we 52-42-30 lovers to do when or FDs wear out?

"Qui si parla Campagnolo-www.vecchios.com" <[email protected]> wrote in
message news:[email protected]...
> On Sep 4, 9:02 pm, [email protected] wrote:
>> Would the shimano ultegra 6603 triple front derailleur work ok with a
>> 9s cassette (even though it states it should be paired with 10s
>> cassettes) ?
>
> shimano 10s front ders don't work well with 9s shifters..however the
> opposite is not true(10s shifters and 9s front ders). Not a problem
> with the chain or cogset but the shifter. Also, 6603 and 7803 front
> derailleurs will not work well with 52/42/30 triples as the cage is so
> long it hots the middle ring when in the largest. Samo for 105 10s FD.
>

 

[Hank Wirtz]

On Sep 5, 11:18 am, "Die! Spammer Die!" <[email protected]> wrote:
> Ok, So what are we 52-42-30 lovers to do when or FDs wear out?
>
> "Qui si parla Campagnolo-www.vecchios.com" <[email protected]> wrote in
> messagenews:[email protected]...
>
>
>
> > On Sep 4, 9:02 pm, [email protected] wrote:
> >> Would the shimano ultegra 6603 triple front derailleur work ok with a
> >> 9s cassette (even though it states it should be paired with 10s
> >> cassettes) ?
>
> > shimano 10s front ders don't work well with 9s shifters..however the
> > opposite is not true(10s shifters and 9s front ders). Not a problem
> > with the chain or cogset but the shifter. Also, 6603 and 7803 front
> > derailleurs will not work well with 52/42/30 triples as the cage is so
> > long it hots the middle ring when in the largest. Samo for 105 10s FD.- Hide quoted text -
>
> - Show quoted text -

Buy a new bike. Duh.

 

[Qui si parla Campagnolo-www.vecchios.com]

On Sep 5, 12:18 pm, "Die! Spammer Die!" <[email protected]> wrote:
> Ok, So what are we 52-42-30 lovers to do when or FDs wear out?
>
> "Qui si parla Campagnolo-www.vecchios.com" <[email protected]> wrote in
> messagenews:[email protected]...
>
> > On Sep 4, 9:02 pm, [email protected] wrote:
> >> Would the shimano ultegra 6603 triple front derailleur work ok with a
> >> 9s cassette (even though it states it should be paired with 10s
> >> cassettes) ?
>
> > shimano 10s front ders don't work well with 9s shifters..however the
> > opposite is not true(10s shifters and 9s front ders). Not a problem
> > with the chain or cogset but the shifter. Also, 6603 and 7803 front
> > derailleurs will not work well with 52/42/30 triples as the cage is so
> > long it hots the middle ring when in the largest. Samo for 105 10s FD.

Yep, a problem and we have stocked up on FDs that were made for the
52/42 combo. As Sheldon pointed out, the 105 10s FD, made for a 50/39,
works but it doesn't travel as far per shift, with 9s left STI, since
it is optimized for 10s ring spacing, closer together than 9s. shimano
wants you to UPGRADE, of course.