Old 03-15-14, 08:55 PM
Gonzo Bob
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That combination of shifter and rear derailer will work for 9-speed. What the sticker on the shifter means is that it will shift the RD-7400 at 8-speed spacing and the RD-7700 at 9-speed spacing. The cable pull requirements changed for Dura-Ace going from 8-speed to 9-speed. All other Shimano road rear derailers match the RD-7700 cable pull.

Check the cable attachment at the rear derailer. If it is attached incorrectly, the rear derailer will shift at 8-speed spacing and skip a cog (see Shimano Dura-Ace Compatibility - you need "Position A")

Last edited by Gonzo Bob; 03-15-14 at 09:03 PM.
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