Rear

This is the indexed ratchet needed for converting Campagnolo 11-speed rear derailleurs with a 27-tooth maximum tooth capacity to a 29-tooth maximum tooth capacity to work with 12-29 cassettes.

Campagnolo's Athena Rear Derailleur uses an advanced-parallelogram design that assures quick, precise shifting. The aluminum construction keeps weight low and boosts strength for a rigid assembly. Plus, the pulleys are made from a special material for quieter drivetrain action.

Campagnolo's Athena Triple GS Medium Cage Rear Derailleur uses an advanced-parallelogram design that assures quick, precise shifting. The aluminum construction keeps weight low and boosts strength for a rigid assembly. Plus, the pulleys are made from a special material for quieter drivetrain action. - Cage Length: GS-Medium+ - Chain Wrap Capacity (teeth): 40 teeth - Drivetrain Speeds: 11 - Largest Cog (teeth): 30 - Rear Der/Shifter Compatibility: Campy Athena - Rear Derailleur Mount Type: 10x1 Standard - Weight: 216g