Campagnolo Chorus 11sp Rear Derailleur

. Upper to lower pulley-axle: 55 mm . Composite outer plate . Parallelogram with 11s geometry . Black anodized forged aluminium upper body . Lightened special rubber pulleys . Rear derailleur fixing bolts in aluminium: with the same resistance and stiffness, the new two-part system makes it possible to reduce the weight by 53% compared to steel and 22% compared to titanium - prolongs the component life. . Carbon fibre front plate: the body of the front plate wraps the upper and lower parts, providing 150% more torsional stiffness compared to a traditional rear derailleur. . Ultra-Shift exclusive geometry parallelogram: maximum derailleur stiffness, fast shifting, precision, reduction of possible play. . Ultra-Shift aluminium lower and upper body: lower weight, rigidity, friction reduction - longer component life. . Cage plate with holes for reducing weight . Weight: 186g ** Compatible with 2015 Campagnolo drivetrains and onwards