On 8/13/2019 9:47 AM, 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.


Santana builds with Ultegra STi and XTR rears and has for
many years (9, 10, 11 speed format); excellent dependable
setup for wide range gearing:

http://www.yellowjersey.org/sanes19b.html

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971