Originally Posted by
RobbieTunes
+1
Different RD's move different distances given the same length of cable pull.
I'd check the RD for "catches" due to grit or grease or cable routing, etc. A lot of them catch right at the first cog, you adjust for it, only to pay the price farther up the cassette/freewheel.
^^^That is Some solid knowledge there.
Given that does anyone know if the 7 speed 6400 tri color rear derailleur (oem on the '88 '89 Master IM) has a different pull ratio than the 8 speed 6401 tri color rear derailleur?
I use the 6401 on my '89 but for 7 speed. It is Awesome, so smooth, and precise. I don't even want to take it off to try it out on the Carbon for the 8 speed gripshift. But.. I will when I get me a dura ace 7700 rear derailleur and 7700 braze on front derailleur for my '89 Ironman.