Campagnolo Chorus 12-Speed Rear Derailleur

Al the same technology and design of top-end Campagnolo products, incorporating the sophistication and performances of the 12-speed Super Record and Record. With just a few changes in the materials used for its construction 3D Embrace Technology: Movement of the rear derailleur is designed to make the chain embrace more teeth per sprocket to guarantee maximum traction Optimised trajectory: Movement of the rear derailleur means that the upper pulley wheel on the cage is always constantly close to the sprocket in use 12-tooth pulley wheels: Perfect for cassettes that have a wide range of teeth Optimised return spring: This guarantees constant chain tension regardless of road vibration