Joined: Sep 2009
Posts: 4,697
Likes: 2,039
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Bikes: Masi, Giant TCR, Eisentraut (retired), Jamis Aurora Elite, Zullo, Cannondale, 84 & 93 Stumpjumpers, Waterford, Tern D8, Bianchi, Gunner Roadie, Serotta, Serotta Duette, was gifted a Diamond Back
If you use the older mountain bike RD, like the 9-speed XT RD, this will work with 10 speed brifters and 10 speed cassette. Do not use the dyna-sys 10 speed RD. These have a different pull ratio.