Originally Posted by
Andrew R Stewart
This! See attached photos. I run this basic system on 4 different bikes. The specific gearing changes from bike to bike but the use of an Ergo LH shifter and a ShiftMate are the key. Andy.
would I need to use a 9 speed cassette using the shiftmate #2 with 10sp campag ergo shifters and 9 speed MTB RD?