Originally Posted by
MookieBlaylock
Interesting that you say the 6400 tricolor derailleur would shift to all gears. And that includes the indexing? That seems like a dumb question. I guess I've never considered having to shift to more than 7 gears.
Thanks
with rare exceptions most rear derailleurs from 7-10 speed work fine as long as you stay shimano compatible. the indexing is all on the shifter side, the RD just moves the distance its told and they did not change ratios until 11 speed.
you will need a correct speed chain so that it can fit the rear sprocket spacing (as it gets closer as more speeds are added)- and that has caused me to have hit or miss issues with the front derailleur. Like my tricolor FD could not handle the 10 speed very well. got a proper 10 speed fd and all was solved.