On 2019-08-13 07:47, Ted Heise wrote:
On Sun, 11 Aug 2019 19:09:21 -0700 (PDT),
Chalo wrote:
Note that Shimano road and MTB 10 speed derailleurs have
different pull ratios. Rear derailleurs and shifters are
miscible up to 9 speed.
This might be why I could never get really good shifting on my
tandem, which came with 10-speed Shimano brifters and mountain
bike (XTR?) rear derailer. I could adjust it to shift well across
only part of the cassette. I swapped the rear der for the newish
long throw road derailer, and it now shifts beautifully.
You can (or at least could) also get tiny pulley-things that act as a
cable pull ratio translator, like a mini "transmission" for the cable.
--
Regards, Joerg
http://www.analogconsultants.com/