I am changing my 08 Cannondale street tandem from 8 to 9 speed using an 11-32 XT cassette, X.0 twist shifters and X.9 RD. I also replaced the chain (PC-951). The chain will not shift into the 11T cog. I am not able to adjust the RD to line up with the 11T. All parts are new (but cassette), and the der hanger looks good.
Suggestions? Has anyone done this conversion?