Campagnolo eps record front derailleur 11spfor 2015 there is a new geometry of the mech cage and a new software giving different cage strokes the campagnolo eps drivetrain is an organic set of mechanical and electronic components that work together in an integrated way to guarantee maximum performance in particular the eps derailleur interacts with the mechanical crankset and enhances the elevated derailleur speed and precision made possible with xps s technology the 8 special upward zones