9 speed Campagnolo rear derailleur

[JBIthaca]

Thinking about going to a triple. I am currently running a 97 Record
shifter rebuilt from 8 to -9 speed with a Daytona 9 speed rear
derailleur (2000?) short cage with the B-adjusting screw at the rear
of the derailleur dropout. Will a current 10 speed triple/long cage
rear derailleur work with this set up, since as I understand it, the
pull is regulated by the shifter and not the derailleur? Finding a
Daytona triple rear derailleur is difficult.

Thanks for your assistance.

[Hank]

The pull ratio is oh so slightly different between "old 9" (pointy
hoods) and "new 9" (round hoods), but Campy seems to endorse mixing
them. "New 9" is the same ratio as 10 & 11. Daytona was only ever New
9, so a Race Triple or Comp Triple or recent Xenon/Mirage/Veloce/
Centaur long cage should work fine.

[bfd]

Agree, I mix "old" 9 speed shifters with "new" 10 spd rear der and have zero problems shifting and that's with shimano 9 cassettes! Give it a try, you should be able to make it work. Good Luck!

[AMuzi]

In theory, no.
In practice probably yes.

The rear changer geometries are different but only slightly
so. With pointy Ergos and modern rear changer, set up (with
usual good practices of alignment, limits cable prep, etc)
in a middle gear so the small variance will be slight at
either end rather than large at low gear.

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971

[dusto...@mac.com]

My triple rig has Campy Record 8sp brifters, and a Veloce "10 speed"
rear derailleur, medium cage.
Works great on a fairly close 13-23 8sp cassette, with a 30/42/52
Veloce triple crankset.
That bike has a Racing T (triple) front derailleur; strongly suggest a
triple front with its much deeper inner cage to prevent unshipping the
chain when shifting onto the smallest 'ring.

You might assemble your triple with the cranks and cassette you intend
to use and carefully test it in a work stand with your shorty Daytona
rear derailleur to see if you have enough chain wrap, so the chain
doesn't droop in the smallest cog/smallest chainring combination, or
bind (or "rip the rear derailleur out of the hanger") when shifted
into the largest cog/largest chainring combination.

Forgive unintended possible pedantry: that's an issue of both chain
length and "derailleur wrap", so a little experimentation might save
you the cost and time spent hunting a different rear derailleur.

That said: You can "cheat" but at some point you will shift into a
gear you didn't want to shift into, so your derailleurs should prevent
chain droop in the smallest cog/smallest chainring combination, to
prevent unshipping, which can be injurious to man and machine, and
there should be no danger of binding the rear derailleur-- let alone
"ripping the rear derailleur off"-- if the chain is in the largest cog/
largest chainring combination. Experience (ancient, ignorant) speaking
here, luckily no damage was incurred.

Just sayin': My triple and two double road bikes are a mishmash of 8,
9, and 10 speed Campy components. 9sp Record and Centaur brifters on
the double 'ring bikes, one 8sp rear derailleur, one 10sp rear
derailleur, same for fronts on the double bikes; Record and Veloce 9sp
cassettes, currently. It all works just fine except the old 8sp
chainrings on the one bike can be a little iffy about the chain
properly shifting onto the small 'ring while stopped, after arriving
in the big ring. Gotta be a little careful there, insuring "positivity
of engagement" as it were, but otherwise, no issues. I ride with
competitive groups in rolling terrain, use my brifters a fair amount,
and the shifting is reliable with only minimum basic maintenance--
reasonable cleanliness, a little lube in the right places, and proper
cable adjustment on the rear derailleur to center the upper pulley
over the cogs. Ten or eleven speed might be a different story but my
gear works just fine and it's long paid for.

Matching components would be nice, no argument, but I don't really
care and the parts don't seem to mind, either <g>.
--D-y

[russell...@yahoo.com]

On Sep 12, 1:41 pm, JBIthaca <jbon...@ithaca.edu> wrote:

Your 1997 Record shifter will probably shift a new 9-10 rear
derailleur pretty well. Not perfect though. Back in about 2000
Campagnolo changed the pull of the rear derailleur slightly. So 2000
and earlier shifters only work perfectly with 2000 and earlier rear
derailleurs. Ideally, you need to find a very old rear derailleur to
match up with your 1997 Ergo shifter. I have 1998 Ergo and used it
with a long cage early 2000s Centaur rear derailleur. It shifted OK,
but on a few gears there was slight hesitation. Not perfect shifting,
but good enough to ignore.