The Record 12-Speed rear derailleur has an innovative shape that envelopes the cassette better, thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power and precision of shifting.

– Carbon fiber-reinforced construction, to increase strength while keeping weight to a minimum
– 12-tooth pulley wheels for smoother chain movement
– Optimized to work with cassettes from 11 to 34 teeth

Specifications:
– Largest Cog: 34
– Rear Derailleur Mount Type: 10×1 Standard
– Chain Wrap Capacity (teeth): 37
– Cage Length: Medium
– Rear Der/Shifter Compatibility: Campy 12-Speed Chorus/Record/Super Record 2019+
– Drivetrain Speeds: 12