campagnolo CENTAUR BLK medium 11S R mechanism

・Weight: 230g ・Redesigned rear derailleur orbit angle (45 degrees) ・One rear derailleur supports all sprocket combinations ・Pulley with bearings ・Tooth tips Upper pulley with a longer length ・Lower pulley with rounded teeth ・Ultra-lightweight technopolymer upper and lower body reinforced with glass fiber ・Limit screw located on the back side of the upper body - Not compatible with POTENZA Ergopower from MY2017 onwards.