Bumping an old thread.
Can I mate these (first generation RD-M700) with indexed downtube shifters? Specifically some SL-6400s? I've about to switch to a 7-speed HG compatible freewheel, and thought I might be able to switch to indexed shifting as well.
I know, I know - try it and tell us. I don't own the SL-6400's, but might be able to pick some up for $20. Would prefer to pass (and keep my $20) if this is a fool's errand.
Cheers!