Details Campagnolo Chorus 12 Speed Cassette Compatibility: Same width as the 11-speed no need to change or update wheels Smaller spaces: Faster more precise shifting Same thickness spacers: Easy error-free fitting. Sets of three in single-block steel: Stiffness and elimination of power dispersion Compatible with Record and Super Record 12 speed Cassette sizes: 11-29T 11-32T or 11-34T 310g (11-29T version) Chorus was designed for versatility whether you’re on an all day outing or just a short ride after work Chorus ensures a high peformance output however its used.The Chorus groupset is fully compatible with the cassettes from the Record and Super Record 2×12-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 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: Two bigger sets of three in a single-block piece: Eliminating energy dispersion. Surface treatment: It increases durability and improves smoothness Please note: The 11-34 cassette is not compatible with Record or Super Record.
