SHIMANO CS-HG80 (Saint) 9sp cassette, 11-28 Cassette Cogs: 11,12,13,14,16,18,21,24,28Cassette/Cog Range: *11-28tCassette/Cog Range: 11-28tCogs: 11,12,13,14,16,18,21,24,28Speeds: 9spWeight: 245g