Details The Campagnolo Chorus cassette offers cyclists even more versatility and greater choice and autonomy in terms of available gears.- Designed as the same width as 11-speed cassettes to maximize compatibility with wheels and frames- The two bigger sets of three in a single-block piece eliminate energy dispersion- Surface treatment increases durability and smoothness- Cassette Body Type: Campagnolo 10/11/12 Speed- Drivetrain Speeds: 12- Color: Silver- Defined Color: Silver