Originally Posted by
buckfifty
http://farm6.static.flickr.com/5251/...f28e17d5_b.jpg
The cassette is the same, I changed the wheel
I installed the wheel the same as I've done in the past: shift to the smallest cog, remove, reinstall in the smallest cog
No cable housing piece was missing
I re-taut the RD cable and was able to shift higher, but now it mis-shifts between 2 and 3
OK now we're getting closer. The cassette to right dropout distance varies slightly hub to hub, and among brands of cassettes. That means when you change wheels or cassettes, you have to recheck the inner and outer limit adjustments and the trim (cable tension) adjustments. Often the difference is slight enough that the limits are close enough, but the trim is very sensitive to any shift in cassette position.
If you have multiple wheels for the same bike and switch back and forth, for example training, racing and time trial wheels, it pays to get or make some micro-spacers for behind the cassette and get the cassette to locknut distance identical on all the wheels. Years ago I sponsored a team, and we carefully matched all the wheels so any wheel could be moved to any bike without any change in RD adjustment.