Kimmo 

I've had two 7 of 8spd Shimergo bikes before and really enjoy Campy shifting a Shimano drivetrain; IMO it's better than either complete system. Ergo and HG are win.

So now I'm thinking about what the future holds; seems to me 10 or 11spd is pushing it both in terms of drivetrain life and persistence of tune, let alone expense... even 9spd may be pushing it a bit. But 8spd means 1st gen levers, which are long in the tooth and a bit chunky; I never did like the corner on em either. I also like the idea of a slightly lighter chain, being a tad thinner. So 9spd it is.

So here's my question: given Campy's 9spd spacing is 0.21mm larger than Shimano's, a 9spd HG cassette shimmed to be Campy-compatible would be 1.68mm wider... is this a deal-breaker?

Does it mean I'd need to run 8 of 9 and a spacer, or is there enough spare meat on the top cog's splines (I'd run a 12t) for all nine to fit?

Kimmo 

No idea, anyone?

Al1943

I think you need to trim off the back of the freehub where the largest cog rests. A machine shop could to that.
You'll need all individual cogs (not Ultegra or D-A) and a Campy spacer kit. But then you'll be pushing the limit on derailleur - spoke clearance.

If it was me I'd rebuild the wheel(s) with a Campy compatible hub, like a DT 240s.

You'll want the later Campy 9-speed shifters and derailleurs. The cable pull and actuation ratio changed in 2001.

Kimmo 

Did they go to more or less cable pull in 2001? If they went to more pull, I'd agree I want the later ones.

The idea of minimising derailleur to spoke clearance appeals to me... wouldn't be the first time I went the hack on a freehub body either.

Check out my cool Hyperglided AX hub... it has a recessed cassette body and the HG one wouldn't fit at first...



Although it's really pushing the spoke clearance factor... I'll prolly never use it, but I could space the cogs out up to 1.5mm or so.

rdtompki

Our tandem has Campy 10 spd shifters and a daVinci modified SRAM X9 RD. This shifts perfectly and others have used a Jtek with very good success. daVinci should have a RD modified for 10 speeds over the winter. I'm really looking forward to a 10 spd 11-32.

Al1943

Not sure less or more. I think replacement parts will be easier to find for the later 9-speed.

DaveSSS 

9 speed is dead and not supported at Campy. The old 9 speed system used an average 3.2mm cable pull and the new ones uses 3.0mm. Other Campy average cable pulls are 2.8mm for 10 speed and 2.6mm for 11 speed.

In comparision, Shimano 8 uses the same average 2.8mm pull as Campy 10. Shimano 9 requires 2.5mm and Shimano 10 uses 2.3mm.

Campy and Shimanos both use non-uniform cable pulls, but I've never seen anyone post the individual pulls for Shimano. FWIW, Campy 10 shifters pull 2.5mm five times, 3mm twice and 3.5mm twice.

SRAM uses a uniform cable pull of 3mm for road 10 speed RDs.

Campy 11 shifters that pull an average of 2.6mm of cable, have been used with a Shimano 9 drivetrain. It would probably work better with a little cable routing change to slightly lengthen the effective lever arm, but the change would have to be small - nothing like the routing the hubub routing that allow a Campy 10 shifter to be used with Shimano 9.

Kimmo 

Thanks for the comprehensive reply : )

Huh. I guess that means I could use Campy 10s to shift my Shimano derailleur and 8spd cassette... sweet! The individual shift pulls couldn't be too far off, and with two extra clicks to play with, I should be able to dial it in...

AEO

alternative cable routing is worth a try.


shimano 9sp everything, except for the 10sp campy ultra shifters

NightShift

Given the non-uniform cable pulls it's entirely possible 9 of the 11 clicks of a Campy 11 would line up near perfect with a Shimano 9 without any cable routing tricks, but without per click measures there's no way to know if it would or which 9 clicks you'd want to use.

Despite the claims of uniform cable pull for SRAM I remain unconvinced until I see real data to back this up.
I don't have a SRAM ESP shifter or derailer, so I can't test this myself.
Zinn's claims of Campy/SRAM compatibility would argue against this, but he never posted the per click cable pull, so his statement that his setup shifts well is subjective.

Anyone with SRAM ESP willing to measure and post? Please?

bluenote157

+1 on what AEO said.. I've done 10 speed campy ergo with 9 speed shimano drivetrain with alternate routing and jtek. Works fine.

Also.. i've done 9 speed ergo with 9 speed shimano drivetrain. Rerouted the cable and it worked fine.

Fred Smedley

Early or late Campy 9?

smiller

i'm currently running campy 10sp ergo brifters on shimano 8sp rear gears/der and it shifts better than the shimano shifters did.

cs1

As mentioned above get a Shiftmate by Jtek. Good luck

Kimmo 

So how many types of Ergos are there?

Original 8spd, old 9spd, new 9spd, 10spd, 11spd...

Then there's QS, Powershift and Ultrashift - where do they fit in and what do these terms denote exactly?

cs1

From 2000 to 2006 all Campy shifters from Mirage to Record used basically the same shifters. Record and Chorus used ball bearings. Centaur and below used a bushing. There were a few years Record used some kind of Teflon coated enternals to make shifting smoother. Still they were basically the same. In 2007 ALL the front shifters went to QS, quick shift. It reduced the amount of travel the front shifter moved. In 2007 Centaur and below went to the Escape mechanism for the rear shifter. The rear can only upshift one gear at a time like Shimano and it isn't rebuildable. See here for a nice explanation. https://www.bikeforums.net/showthread...ow-do-you-tell Escape shifter aren't well liked.

All Chorus and Record from 2007-2008 used the old style rear shifting.

Along comes 2009 and 11 sp. Campy totally redesigned the shifters. Now they can all shift the entire cassette in one motion. Campy calls this Ultrashift.

Now comes 2011 and Campy brought back Escape and calls it Powershift. It's basically the same thing. Centaur and below use Power Shift while Chorus and Record use Ultra Shift.

IMO Escape and Powershift are just a cheaper way to produce a shifter. Campy doesn't sell individual replacement parts for either. You have to buy the entire assembly.

Which brings us back to your original question which I forgot. Oh well that's what happens when your over 50. Good luck on whatever shifter you choose.

cs1

Almost forgot. 2000 to 2006 Centaur and below are really climbing in price. It's almost better to look for a Chorus or Record. Considering how much more they were new, they're not really much more used.

Kimmo 

Damn, this is confusing... I've been trying to parse my options for non-QS, non-Powershift 10spd levers for like ten minutes, and my head is spinning.