Adopts its design and mechanical function from the original Revolution 11 + front derailleur Ergopower internals couple with the longer rod and one-piece steel cage to ensure precise and reliable shifting Minimal effort required to upshift from internal ring to external Double or Triple: Double Drivetrain Speeds: 11 Front Der/Shifter Compatibility: Campy Centaur/Potenza/Chorus/Record/Super Record 2015+ Cable Pull: Bottom Pull Clamp: Braze-on Front Derailleur Style: Traditional Weight: 103g.