Join Date: Oct 2002
Location: Medway, MA
Bikes: 2011 Lynskey Sportive, 1988 Cannondale SM400
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1. If you want to continue with 9 speed shifting, you need a set of Ultegra 9 speed shifters. The 10 speed ones will only work if you also change your cassette and chain to 10 speed as well. The derailleurs will be fine regardless.
2. HillRider is correct, but why change the derailleurs at all? The 105 and Tiagra derailleurs will work with Ultegra shifters.
STAR 3 Spinning Instructor
2011 Lynskey Sportive (Shimano Ultegra 10s)
1988 Cannondale SM400 (Suntour XC-M 7s)