• the 2009 rear mech will work with ANY 10spd Ergo, there's no difference except the QS Ergos don't allow you to shift so many gears in one swipe. The front mech is more critical wrt to Ergo compatibility (see above Campy note). Not trying to confuse you, just seen too many broken hearts when it comes to Campag compatibility, there's always a 'gotcha'!

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