Colnago front derailleur problem

KK-<< When I rotate the derailleur
as far counterclockwise (looking down the seat tube toward the BB) as
it will go, the cage is still not parallel to the chainring - i.e.,
the rear of the cage is pointed into the rear wheel by probably 5
degrees or so. >><BR><BR>

Have seen this with Colnago brazeon tabs in the past You need to 'gently' bend
the thing forward.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Karl said:

hi all,
I'm building up a new C40HP

Drool drool.

with a campy record 10 front mech (yes I

Quoted message said:

know I am lucky) and I have a problem. When I rotate the derailleur
as far counterclockwise (looking down the seat tube toward the BB) as
it will go, the cage is still not parallel to the chainring - i.e.,
the rear of the cage is pointed into the rear wheel by probably 5
degrees or so. Not much, but I am pretty sure it won't work given
past experience tuning front derailleurs. Anyone else had such an
issue with Colnago + campy?

Oh dear. Frame is terminal, and warranty won't cover. Let me send you a
delivery address so you can get rid of it . . .

But seriously folks. Welcome to the club. My Colnago front DR hanger put
the cage too far *anticlockwise* for Campag. As Peter says, just bend it
to taste. Not a big issue, quite OK to push them around.

Other alternatives include bending the DR cage itself (though try to
avoid stressing the DR pivot points), which will give similar effects,
only different.

Just in case: Similar artistry can be done for *rear* DR hanger if
required, by sticking suitable allen key in DR pivot bolt and giving it
a bit of a tug in the right direction.

BR /Robert

Robert said:

Karl said:

know I am lucky) and I have a problem. When I rotate the derailleur
as far counterclockwise (looking down the seat tube toward the BB) as
it will go, the cage is still not parallel to the chainring - i.e.,
the rear of the cage is pointed into the rear wheel by probably 5
degrees or so. Not much, but I am pretty sure it won't work given
past experience tuning front derailleurs. Anyone else had such an
issue with Colnago + campy?

Robert said:

Oh dear. Frame is terminal, and warranty won't cover. Let me send you a
delivery address so you can get rid of it . . .

But seriously folks. Welcome to the club. My Colnago front DR hanger put
the cage too far *anticlockwise* for Campag. As Peter says, just bend it
to taste. Not a big issue, quite OK to push them around.

Other alternatives include bending the DR cage itself (though try to
avoid stressing the DR pivot points), which will give similar effects,
only different.

Just in case: Similar artistry can be done for *rear* DR hanger if
required, by sticking suitable allen key in DR pivot bolt and giving it
a bit of a tug in the right direction.

I've said it before, and I'll say it again:

Braze-on front derailer mounts are the work of SATAN!

Sheldon "Never Ending Battle Against The Forces Of Evil" Brown
+------------------------------------+
| Experience is a hard teacher, |
| because she gives the test first, |
| the lesson after. -- Vernon Law |
+------------------------------------+
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

Sheldon Brown wrote:

----8<--- cutting previous people's material --

Quoted message said:

I've said it before, and I'll say it again:

Braze-on front derailer mounts are the work of SATAN!

Sheldon "Never Ending Battle Against The Forces Of Evil" Brown

Wait Sheldon, the OP did imply "brazed-on", but that can't apply to a
C40. I haven't been within 100m of such a beastie (though I've sworn to
at least touch one before I die), but I'd guess that the derailleur
hanger is *riveted* onto metal inserts, embedded in the CF tube.

Any C40/C50 owner willing to confirm this for us?

If this is the case, then it's in fact a great design, because a broken
one can be replaced with the help of a pop rivet gun. My Colnago Chic
(much poorer cousin to the C40 but I love her anyway) is built this way.

BR /Robert "another Brown" Brown

Robert said:

Sheldon Brown wrote:

----8<--- cutting previous people's material --

Quoted message said:

I've said it before, and I'll say it again:

Braze-on front derailer mounts are the work of SATAN!

Sheldon "Never Ending Battle Against The Forces Of Evil" Brown

Wait Sheldon, the OP did imply "brazed-on", but that can't apply to a
C40. I haven't been within 100m of such a beastie (though I've sworn to
at least touch one before I die), but I'd guess that the derailleur
hanger is *riveted* onto metal inserts, embedded in the CF tube.

Any C40/C50 owner willing to confirm this for us?

If this is the case, then it's in fact a great design, because a broken
one can be replaced with the help of a pop rivet gun. My Colnago Chic
(much poorer cousin to the C40 but I love her anyway) is built this way.

BR /Robert "another Brown" Brown

Dear Robert,

Vampires or werewolves, brazing or rivets, they're all
still the work of Satan.

Buffy

[email hidden] wrote:

----8<---cutting exchanges

Quoted message said:

Dear Robert,

Vampires or werewolves, brazing or rivets, they're all
still the work of Satan.

Buffy

OK Slayer - what *is* the karmically most correct way of attaching a
front der hanger to a seat tube? I figured that the rivet was the best,
due to the fact that the work can be un/redone so easily, but now you
got me wondering . . . /Robert

Yes it is in fact 2 rivets holding the tab
Eric

Robert said:

[email hidden] wrote:

----8<---cutting exchanges

Quoted message said:

Dear Robert,

Vampires or werewolves, brazing or rivets, they're all
still the work of Satan.

Buffy

OK Slayer - what *is* the karmically most correct way of attaching a
front der hanger to a seat tube? I figured that the rivet was the best,
due to the fact that the work can be un/redone so easily, but now you
got me wondering . . . /Robert

Dear Robert,

Nothing is won without labor--even those born with super
powers may have to dye their hair to become blonde.

The answer that you seek is buried deep in this mystic
scroll, which falsely ascribes curmudgeonly qualities to a
famous member of rec.bicycles.tech, who is generally genial
when not provoked by godless braze-ons:

http://groups.google.com/groups?selm=8bbde8fc.0401202214.3d67b8ed%40posting.google.com&output=gplain

or

Read until you reach the phrase "many would rather die" and
all will become clear.

Buffy

[email hidden] wrote:

---8<---cutting weakly-voice objection by myself (Robert) ...

Quoted message said:

Dear Robert,

Nothing is won without labor--even those born with super
powers may have to dye their hair to become blonde.

The answer that you seek is buried deep in this mystic
scroll, which falsely ascribes curmudgeonly qualities to a
famous member of rec.bicycles.tech, who is generally genial
when not provoked by godless braze-ons:

http://groups.google.com/groups?selm=8bbde8fc.0401202214.3d67b8ed%40posting.google.com&output=gplain

or

Read until you reach the phrase "many would rather die" and
all will become clear.

Buffy

Dear Buffy,

"*until* you reach the phrase?" It got funnier *after* the "many would
rather die". Yes, Scrooge would've ridden a fixie too. Thus no front der
at all, neither clamped, riveted, bolted, brazed, or glued on with pig snot.

Apart from my meager complaint that clamped front derailleurs make life
a [censored] for those with short chainstays, who like to put on wheels with
tyres of profile >20 mm . . . OK, OK, I give up.

But I'll be making a "spirited" appearance next Xmas, on this topic.
You'll see.

BR /Robert "The Shifter of Christmas Past" Brown

[email hidden] wrote:

---8<---cutting weakly-voice objection by myself (Robert) ...

Quoted message said:

Dear Robert,

Nothing is won without labor--even those born with super
powers may have to dye their hair to become blonde.

The answer that you seek is buried deep in this mystic
scroll, which falsely ascribes curmudgeonly qualities to a
famous member of rec.bicycles.tech, who is generally genial
when not provoked by godless braze-ons:

http://groups.google.com/groups?selm=8bbde8fc.0401202214.3d67b8ed%40posting.google.com&output=gplain

or

Read until you reach the phrase "many would rather die" and
all will become clear.

Buffy

Dear Buffy,

"*until* you reach the phrase?" It got funnier *after* the "many would
rather die". Yes, Scrooge would've ridden a fixie too. Thus no front der
at all, neither clamped, riveted, bolted, brazed, or glued on with pig snot.

Apart from my meager complaint that clamped front derailleurs make life
a [censored] for those with short chainstays, who like to put on wheels with
tyres of profile >20 mm . . . OK, OK, I give up.

But I'll be making a "spirited" appearance next Xmas, on this topic.
You'll see.

BR /Robert "The Shifter of Christmas Past" Brown

Quoted message said:

OK Slayer - what *is* the karmically most correct way of attaching a
front der hanger to a seat tube? I figured that the rivet was the best,

due to the fact that the work can be un/redone so easily, but now you
got me wondering . . . /Robert

Don't attach it at all. Use a clamp on derailleur.
Phil Brown

Quoted message said:

OK Slayer - what *is* the karmically most correct way of attaching a
front der hanger to a seat tube? I figured that the rivet was the best,

due to the fact that the work can be un/redone so easily, but now you
got me wondering . . . /Robert

Don't attach it at all. Use a clamp on derailleur.
Phil Brown

Eric said:

Yes it is in fact 2 rivets holding the tab
Eric

Thanks Eric. Sounds as if you've been close to such a (divine) piece of
work at least once. Yours? If so, what do you think of it? I'm
considering driving down to France, where I see that a few C40 framesets
are on sale at present. God knows why I'd buy something that's more
suitable for riders 10 times better than me. I have better taste, but
much less ability . . .

/Robert

Phil Brown wrote:

---8<---

Quoted message said:

Don't attach it at all. Use a clamp on derailleur.
Phil Brown

Too many Browns all of a sudden, not enough rivets.

BR /Robert

In article <[email hidden]>, [email hidden]
says...

Quoted message said:

Wait Sheldon, the OP did imply "brazed-on", but that can't apply to a
C40. I haven't been within 100m of such a beastie (though I've sworn to
at least touch one before I die), but I'd guess that the derailleur
hanger is *riveted* onto metal inserts, embedded in the CF tube.
Any C40/C50 owner willing to confirm this for us?
If this is the case, then it's in fact a great design, because a broken
one can be replaced with the help of a pop rivet gun. My Colnago Chic
(much poorer cousin to the C40 but I love her anyway) is built this way.
BR /Robert "another Brown" Brown

The sad part is the guys pop riveting the hanger on the frame can't put
it into a position that allows for proper positioning of a derailleur.
It's either poor design or poor quality control. In either case it is
inexcusable on a frame that costs as much as a Colnago does. Actually
it is inexcusable on any frame no matter the cost.
--------------
Alex

Robert <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

Eric said:

Yes it is in fact 2 rivets holding the tab
Eric

Thanks Eric. Sounds as if you've been close to such a (divine) piece of
work at least once. Yours? If so, what do you think of it? I'm
considering driving down to France, where I see that a few C40 framesets
are on sale at present. God knows why I'd buy something that's more
suitable for riders 10 times better than me. I have better taste, but
much less ability . . .

/Robert

thanks to everyone for the info.

and don't sweat buying a bike better than you - Colnago would be out
of business if the only people riding them were the ones whose ability
matched the frame. If you can afford it, that's good enough. I
lusted over it a couple of years then two friends with C40s (who have
each ridden many other high end bikes) convinced me it was the one, I
got a great deal from Maestro in England. Can't wait to get it on the
road.
cheers
Karl

Capt-<< Braze-on front derailer mounts are the work of SATAN! >><BR><BR>

Thanks Sheldon, do ya think the OP going to church will straighten his der tab
tho?

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"