Originally Posted by
Andrew R Stewart
While I run a Shiftmate on many of my bikes, have done so for over 10,000 miles, I will say it does add a pause into the system. But it also does allow combining levers, ders and cassettes to the choices that work for you. Andy.
I agree with Kimmo. I've run Shiftmates on three different drive trains, matching a mix of Shimano and Campy component, for a total of over 50,000 miles. I've never noticed any extra hesitation or delays in the shifting compared to a "straight" system.