Campagnolo Athena 11 speed Rear Derailleur

The heart of the groupset and its key player, the Campagnolo Athena 11-speed rear derailleur is built according to the 11-speed guidelines. Ultra-Shift front plate in aluminium provides greater stiffness, it also increases speed and precision of the shifting, reduces play, prolongs the life span and is corrosion resistant. Ultra-Shift Parallelogram increases the stiffness and thus the speed and accuracy of shifting, and reduces its weight. Ultra-Shift body in aluminium, which translates into larger stress resistance, reduced play and a larger shifting performance. Jockey Wheels in special light-weight material which reduces its weight and damps the annoying vibrations.