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Recreational Cyclocross and Gravelbiking This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

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Old 07-06-12, 10:39 AM   #1
Erik_A
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Shimano CX70 Fr. Der. - compatible w/ Campy Ergo

Does anyone know if the Shimano FD-CX70 Front Derailleur is compatible with the Campy Ergo (left front shifter)?

http://bike.shimano.com/publish/cont...-.fd_road.html

I am assuming that it is since there is some trim in the shift.

I am looking for the lowest profile front double derailleur that will work. My rear wheel (on a Canonndale Cyclocross 5 CAAD9) with a 35 tire leaves very little room for the derailed to be mounted and seems like it will be a mud catcher.
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Old 07-06-12, 11:23 AM   #2
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I can't figure out why the RD and the tire would conflict with each other. I had a CX-9 frame with a rival FD and 34mm tufo's. There was never a conflict. Do you have the parts on the bike or just anticipating issues?
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Old 07-06-12, 11:29 AM   #3
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If it is an original preQS ero it will shift about anything you can hook it to including 3spd hubs. I believe the QS has a little shorter cable pull but I can't see it not working with a double. They should work with most triples fr that manner.

I also don't see why the proper campy FD will be an issue.
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Old 07-06-12, 04:55 PM   #4
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Cynikal - it is the front derailleur (not RD) that is tight. The rear triangle on the Canondale is super tight. Maybe my 35s are on the big side. I am building up the frame and the only 34.9mm FD I have is a MTB triple and it almost hits the tire.

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I can't figure out why the RD and the tire would conflict with each other. I had a CX-9 frame with a rival FD and 34mm tufo's. There was never a conflict. Do you have the parts on the bike or just anticipating issues?
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Old 07-06-12, 05:13 PM   #5
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Use a road FD (double) that matches your group. It should be fine.
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Old 07-06-12, 10:18 PM   #6
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Sorry that was a typo. I meant FD. I've had that same frame and use a standard FD with fat tires without issue.
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Old 07-07-12, 05:10 AM   #7
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Thank you
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Sorry that was a typo. I meant FD. I've had that same frame and use a standard FD with fat tires without issue.
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Old 07-07-12, 09:26 AM   #8
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Just bought the CX70 fr derailleur - Jenson price matched Nashbar's $51.99 price: http://www.jensonusa.com/Shimano-CX7...ont-Derailleur


and shipping was free.


Also pulled the trigger on the CX70 brakes: http://www.jensonusa.com/Shimano-CX70-Canti-Brake


Still considering the solid CX50 cranks (vs the hollow CX70s)
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Old 07-07-12, 09:57 AM   #9
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why all shimano with campy ergos? it is a common solution to upgrading older bikes (shimano 8spd w/ campy 10 ergos) but isnt a common choice for new builds. campy 11 ergos controlling shimano 9spd would likely be a great cross setup if that is what you have planned. cheap chains and cassettes plus better ergonomics.
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Old 07-07-12, 10:29 AM   #10
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I have an ancient Sachs (re-branded Campy) 8 sp pair of Ergos that I plan to use: http://velospace.org/forums/discussi...eed-these-are/ with a 8 sp Shimano cassette (both 4.8 mm spacing). Shimano brifters, in my experience don't last very long, can't be re-built easily, and don't survive crashes well. The Campy Ergos are seemingly trouble free. I have a stock bike with all Campy Veloce and 9sp Ergos; and a drop-bar "mostercross" MTB with 8sp Ergos on a 7speed Shimano cassette (both 5mm spacing) which shifts great.

See Sheldon Brown's Cassette Spacing Cribsheet:
: http://sheldonbrown.com/cribsheet-spacing.html


Shimano 7-speed: 5.0 mm
Shimano 8-speed: 4.8 mm
Campagnolo 8-speed: 5.0 mm
Sachs 1997 8-speed: 5.0 mm
Sachs 1998+ 8-speed: 4.8 mm






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why all shimano with campy ergos? it is a common solution to upgrading older bikes (shimano 8spd w/ campy 10 ergos) but isnt a common choice for new builds. campy 11 ergos controlling shimano 9spd would likely be a great cross setup if that is what you have planned. cheap chains and cassettes plus better ergonomics.
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Old 07-07-12, 10:37 AM   #11
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I wasnt thinking about the shimano spaced Sachs ergos. That should work well. I can't stand sti either.
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