Thanks for the infos. I looked closer this morning:

1. Even with the cable unscrewed, the shifter won't go beyond 6, so 7-8 are unavailable:


2. When dialing the shifter, the other end of the cable doesn't move at all:


Incidently, how do those cables work? Is the wire somehow fixed within the protective black shaft, so we need the screw + spring to adjust things? On a regular bike, I don't see those screw + spring thingies.

Thank you.