ultegra derailleur

radiation man
Posts: 446
can i replace my shimano 9 speed derailleur, with a ultegra 10 speed 6600 derailleur, and can i also replace my shimano sora 3403 triple chainset, with a 10 speed one, my shifters are 9 speed.
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Comments
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Yes the mech does what the shifters tell it and 10 speed rings are fineYellow is the new Black.0