Cassette Classified (10-36) 12S Classified cassettes are manufactured from a single block of metal, all of which are machined and subsequently coated with a high durability and low wear coating. They are extremely lightweight and designed to fit the unique Classified Powershift hub interface. The cassettes are compatible with SRAM and Shimano 12-speed drivetrains. Andamentos: 10, 11, 12, 13, 14, 16, 18, 21, 24, 28, 32, 36 Weight: 243g incl. spacer