10 speed RD on a 9 speed cluster
09-02-14, 12:39 AM
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10 speed RD on a 9 speed cluster
Can I use a 10 speed Shamano Ultegra rear derailer on my 9 speed cluster and shifter (all Shamano Ultegra set)? Is it just a matter of adjusting the overall range to nine speed width?
09-02-14, 01:32 AM
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You should be fine shifter wise DR wise if everything is good matching.
09-02-14, 01:39 AM
#3
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I'm running 9spd derailleurs with 10spd brifters. The cable ratio hasn't changed. So, I don't know why running a 10spd derailleur with a 9spd brifter shouldn't work. Should be fine. The exception to some of this compatibility is front derailleurs on brifters that don't have a trim function (DA). I don't know if that carried over to later Ultegra brifters or not. But, earlier Ultegra front derailleurs don't work so great with 7900 front brifters. The cable pull was changed. There's a bit of a work around by filing down the cable locator and moving it closer to the pinch bolt. But, that's not perfect and a 7900 front definately works better.
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09-02-14, 05:00 AM
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I've used this for years, works fine.
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