Campagnolo Carbon 15/15T » Previous Model No EMA-JW1515-CPCB Catalogue Derailleur Cage Kit Key Features Carbon Derailleur Cage kit system with pulley wheel Upper:15T/Lower:15T (Campagnolo compatible)TPiPEAK ceramic bearing - Race proven performanceMolded composite material - For superior durability than metal onesDirectional tension pulley - Reduce frictional power loss for quiet and smooth shifting performance Made inTAIWAN