Originally Posted by
dnuzzomueller
Both Rival and Force have Zero loss on the Left hand shifter (front shifter). Only red had it on the right hand shifter (back shifter). I currently have a bike with Force and a Bike with Rival. I am starting to get itchy to try a set of Red shifters now.....
Does anyone know if you can buy the Red internals and put them into a set of Rival shifters? Might be a poor man's way to get Zero-loss

I have both Red and 2010 Force....I can't tell a difference in the shifting between the two.