chorus 12x cassettes

The 12x Chorus cassettes for use with the disc or rim brake groupset. The Chorus groupset is fully compatible with the cassettes from the Record and Super Record 2x12-speed groupsets (11-29 and 11-32) but also introduces a new cassette specification of 11-34. The 11-34 cassette offers cyclists even more versatility and a greater choice and autonomy in terms of available gears. Chorus 12-speed now therefore offers a total of three cassette options: * 11-12-13-14-15-16-17-19-21-23-26-29 * 11-12-13-14-15-16-17-19-22-25-28-32 * 11-12-13-14-15-16-17-19-22-25-29-34 Technologies * Same width as the 11-speed cassette: Totally compatible with wheels and frames. * The two bigger sets of three in a single-block piece: It eliminates energy dispersion. * Surface treatment: It increases durability and improves smoothness * Same-thickness spacers: Ensures error-free fitting Features and Benefits * Compatibility: Same width as the 11-speed, no need to change or update wheels * Smaller spaces: Faster, more precise shifting * Same spacers: Easy error-free fitting. * Sets of three in single-block steel: Stiffness and elimination of power dispersion * 25-29-34 set of three available as a spare part, * Can be converted from the 11-32 cassette Weight: 306g (11-29 version)