i don't think that's true mate, surely the travel of the derailleur is limited in some way or another. also bear in mind that the cable-pull ratio varies between different generations of derailleur so although the shifters provide the indexing they cannot control the amount of cable pulled alone.
i don't think that's true mate, surely the travel of the derailleur is limited in some way or another. also bear in mind that the cable-pull ratio varies between different generations of derailleur so although the shifters provide the indexing they cannot control the amount of cable pulled alone.