Carbon fibre immediately indicates a component's competitive spirit. So just imagine if the component in question is the very soul of the racing bike: the rear derailleur. The carbon front link says it clearly: the Chorus groupset is designed for racing.

Available with a short or medium cage, to interface perfectly with double and compact cranksets.

Specifications:

• Upper to lower pulley-axle: 55 mm
• Composite outer plate
• Weight:
• Short Cage: 202g
• Medium Cage: 205g
• Compatability: Campagnolo® 10 speed Ergopower controls
  

*Campagnolo® claimed weight

Image is of Short cage model.