Does anyone know the situation with 9 speed indexing compatibility between the different years of
groups? On the Excel web site they have the following.
"The right-hand 9-speed control had to be adapted to the new geometry of the 2001 Record 9-speed
rear derailleur. This control now includes a new indexing mechanism which makes it incompatible with
previous 9-speed rear derailleur."
So does this mean that in 2001 they made a change in the cable pull of the lever that makes all
pre-2001 9 speed different than after 2001?
I'm also wondering if a campy 10sp derailleur with work in place of a 9sp.
Just trying to understand the differences between the models and years and indexing/cable pull.
Maybe there is a web site that explains this in more detail?
Thanks
Jay