Old 01-10-19, 10:56 AM
Senior Member
texaspandj's Avatar
Join Date: Jun 2015
Location: Heart Of Texas
Posts: 3,242

Bikes: '86 , '87 , '88 , '89 Centurion Dave Scott Ironman.

Mentioned: 79 Post(s)
Tagged: 0 Thread(s)
Quoted: 1075 Post(s)
Liked 21 Times in 19 Posts
Originally Posted by RobbieTunes View Post

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.
texaspandj is offline