After fitting the 9001s and having studied the manuals over and over the cable still seems to follow the same route as the 9000. Doesn't feel like the path of least resistance taking the cable through 90 degrees but I have yet to ride the bike to see how it feels.
The most significant differences seem to be the lever shape and the way in which the lever attaches to the body - there is significantly less of the insides exposed on the revised shifter units.
Anyone else have any comments on the 9001 "fixing" cable routing issues? I've got a set of the 9000 Shifters picked up on sale over the holidays. Since 9001 shifter have not entered the US retail channels, I'm weighing the time-cost-pain of returning the 9000 and waiting for the 9001. I can live without the new body shape; but if the cable routing is improved, I'd like it.
All is can find is looking at the 9001 parts diagram is posted on the Shimano Tech site. The 9001 has a different shape "cable cover" (same as the 6800), but the cable guide (the curved piece, part # Y63X63000 (right) and Y63X55000 (left)) are the same. This seems to indicate, to me at least, that the cable routing between the 9000 and 90001 is the same.
Interestingly, the 6800 shifters use the same cable guide so chances are its got the same routing (and any issues with snapping cables) as the 9000/9001 shifters. Comments from another forum are that the 6800 does have "better" cable angles into the lever body than the 9000, so I assume that would be part of the 9001 design.
9000 STI parts (EV-ST-9000-3331.pdf)
9001 STI parts (EV-ST-9001-3647.pdf)
6800 STI parts (EV-ST-6800-3603.pdf)
* (don't have enough posts for links, so just the document number)