Originally Posted by
Bill Kapaun
Your 9 speed shifters will NOT shift the 8 speed cassette properly!
A 9 speed shifter has a different amount of cable travel than an 8 speed shifter, per shift.
7 shifts for X distance on an 8
8 shifts for the SAME distance on a 9.
The DER doesn't care. It only moves the amount determined by the shifter.
Bill, I am confused, I have 8 speed shifters (not 9 speed)
so as above post, my 8 speed shifter will work with the 9 speed REAR