Generally in Indexed systems, either the shifting or the derailleur component contains the indexing logic.
Here is a list of components currently on VeloBase.com which utilize the Mavic Index Systems shifting mechanism.
|
| Mavic 840 | 840 | | Mavic; Dura-Ace SIS; Dura-Ace STI; Friction |
| Mavic 845 | 845 | Paris-Gao-Dakar | Mavic; Dura-Ace SIS; Dura-Ace STI; Friction |