Campagnolo Record 12 Speed Rear Derailleur, Carbon

A superbly light and high performing derailleur that's engineered for effortless shifting, so you can reach your peak faster. - Manufacturers part number: RD20-RE124

• Optimised return spring: This guarantees constant chain tension regardless of road vibration
• Optimised trajectory: Movement of the rear derailleur means that the upper pulley wheel is at constant distance to the sprocket in use
• 3D Embrace Technology: Movement of the rear derailleur is designed to make the chain embrace more teeth per sprocket to guarantee maximum traction
• Upper body in ULTRA-LIGHT technopolymer reinforced with UD Carbon Fibre
• 12x Record Rear derailleur for use with the campagnolo 12 speed disc or rim brake groupsets