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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 10-15-05, 11:59 PM   #1
Alexi
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dura ace to 105's

so I just got a set of duraace bar cons and they say they are only to be used with a dura ace rear, is this hogwash?
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Old 10-16-05, 02:36 PM   #2
cyclintom
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Sort of. DuraAce BEFORE 9 speed only worked with DuraAce. With the advent of 9 speeds and more they changed all of the rear derailleurs to work with the same ratio as DuraAce.

So as long as you're not trying to shift 8-speed or earlier rear derailleurs you're OK.
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Old 10-21-05, 12:59 PM   #3
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I don't think theres any difference between Shimano 9sp barcons, a barcon is a barcon I think. Mine work fine with an 8sp Ultegra rear derailleur on my cross bike, and I have another 9sp set on my tandem that work fine with a cheap old 7sp RSX MTB derailleur. I like STI for road racing, but barcons rock for cross and tandems.
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Old 10-21-05, 01:31 PM   #4
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I am using an Ultegra barcon with a campy 8-speed cassette. I don't think anything matters in friction mode.
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