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Compatibility of Using Campagnolo 11-Speed Shifters with Shimano 9-Speed Derailleurs?

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Compatibility of Using Campagnolo 11-Speed Shifters with Shimano 9-Speed Derailleurs?

Old 02-04-11, 02:12 PM
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Compatibility of Using Campagnolo 11-Speed Shifters with Shimano 9-Speed Derailleurs?

A while back someone mentioned that Campy 11-speed shifters were compatible with Shimano 9-speed drivetrain in terms of cable pull. I am considering this combination and have not seen it discussed anywhere else. Has anyone tried it? Did it work?

The Shimano 105 9-speed right shifter on my wife's bike imploded and I can order a new pair of 11-speed Campy Athena shifters (with carbons levers for that matter) for the cost of a 105 right shifter.

Also curious whether the left shifter will shift a triple crankset -- any thoughts?

I am using Campy 9 & 10 speed shifters on my other bikes using the Jtek shiftmate and it works great. The Jtek website does not list this combination but I am not certain whether that means it won't work or that no adapter is required.
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Old 02-04-11, 02:50 PM
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11 sp Campag Ergos and 9 sp Shimano mechs index perfectly with no Shiftmate needed. Many Moultons with Capreo hubs come from the factory with this set up.
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Old 02-04-11, 03:39 PM
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This is great to learn. I would like to stay with 9 speed and Shimano shifters are getting harder to find, except for Tiagra. Campy shifters seem to be priced better, plus they have all those trim positions for the front.....
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Old 02-04-11, 05:58 PM
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All Ergos can work a triple, IIRC.
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Old 02-04-11, 06:10 PM
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If I could find someone who has actually done it, I'd definitely give it a try. Any links to Moultons with this config? The Moulton website makes it sound like their bikes are either Shimano or Campy but not mixed.
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Old 02-05-11, 06:32 AM
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My understanding is both Campy and Shimano use non- uniform cable pull.
If that is accurate which 8 clicks you use would make a difference.
The Shimano instructions I've seen say to attach the cable with the shifter in the highest gear and the chain on the smallest cog. I remember someone saying the Campy directions said the set it up in 4th gear.
I don't know if either of those would be best.

What's really needed is accurate cable pull measurements for both shifters, for each click not just the average for the range.
I've been trying to get measurements for SRAM 10 speed. I now know it has an average pull of (approximately) 3mm, but I still don't know if it's uniform or, if not, what the pull for the individual clicks is.

All I have available to measure is Shimano 7 & 8.

DaveSSS has posted the measurements for Campy 10, but I haven't seen measurements for Campy 11 or Shimano 9 (or rather I've only seen the average posted, not the individual clicks).
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Old 02-05-11, 10:49 AM
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Originally Posted by NightShift
My understanding is both Campy and Shimano use non- uniform cable pull.
Somehow I doubt this -- with the Jtek shiftmate (a little pulley), all the other combinations work just fine. If the pull was non-linear, then a pulley would not convert the cable pull properly. I use this on two other bikes with great results.
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Old 02-06-11, 01:38 AM
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Ring up Moulton and ask them about it. At least two of the demonstrator bike at Bradford on Avon were set up with Campag 11 Ergos and Capreo cassettes and they indexed perfectly. That was a couple of months ago.
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Old 02-06-11, 06:24 AM
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I've heard/read statements from a number of cyclists and wrenches with more experience than myself referring to Shimano and Campy using non-uniform cable pull, but DaveSSS is the only one I've seen sight a source (his first hand measurements).

https://www.bikeforums.net/showthread...=#post11058720

https://www.bikeforums.net/showthread...ity?highlight=

I haven't measured and have no first hand knowledge. I'm openly skeptical regarding the claimed differences in the workings of SRAM derailers. I would love to have more definite proof. I'll measure the individual clicks of my shifters when I get the chance, but as stated previously I only have Shimano 7 & 8 speed at the moment.

Last edited by NightShift; 02-06-11 at 06:52 AM.
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