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Old 06-15-19, 10:31 AM
  #18  
BluesDawg
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Join Date: Feb 2005
Location: Milledgeville, Georgia
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Bikes: 2018 Black Mountain Cycles MCD,2017 Advocate Cycles Seldom Seen Drop Bar, 2017 Niner Jet 9 Alloy, 2015 Zukas custom road, 2003 KHS Milano Tandem, 1986 Nishiki Cadence rigid MTB, 1980ish Fuji S-12S

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Originally Posted by TimothyH

GRX changes the chainline, no? Does anyone know if this requires the GRX front derailleur to be used or if an Ultegra FD will work?
-Tim-
Shimano says you'll need the new FD, so that's the official answer. Real world answer will have to wait until someone tries the new crank with their existing FD. If there is enough adjustment available on your outer limit screw to move the derailleur out 2.5mm, I can't think of any reason it wouldn't work just fine.

For all of us running SRAM shifters made for Yaw type FDs, thus having no trim steps in the shift pattern, I sure hope it will work.
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