Another Ultegra 9/10 mix question...
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Another Ultegra 9/10 mix question...
Ok, I'm doing some upgrading. I've got new Ultegra 9 speed STI brifters coming, a new 9 speed front derailer but a new 10 speed rear derailer. The Shimano tech paper said it will work. But will I have to use a 10 speed chain? No mention of that on their site.
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Originally Posted by khackney
Ok, I'm doing some upgrading. I've got new Ultegra 9 speed STI brifters coming, a new 9 speed front derailer but a new 10 speed rear derailer. The Shimano tech paper said it will work. But will I have to use a 10 speed chain? No mention of that on their site.
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I'd use a 9s chain.
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9 speed chain is what all the bikes that come stock with this setup use (9s gruppo with 10s rear derailleur), and it works beautifully. If you were to put a 10s chain on a 9s cassette it may or may not work as cleanly since 10s chains are a little narrower.