Shimano CS-R7100 12-Speed CassetteBrings Versatility To Any Rider or RoadThe cassette is an important part of any bike. With the right cassette on your bike, you'll be able to climb easier, sprint easier, and ride farther. The Shimano CS-R7100 12-Speed Cassette has a refined 12-step gear combination that provides peak efficiency and accelerating performance for every situation. It is compatible with the new 12-speed and road 11-speed freehub body. FeaturesCompatible with HG 12-speed and 11-speed freehub bodiesRefined 12-step gear combination that provides peak efficiency and accelerating performance11-34T gear range that makes climbing and sprinting easierSpecificationsCassette Body TypeHG 12-SpeedCassette Cogs11-12-13-14-15-17-19-21-24-27-30-34TDrivetrain Speeds12Cassette MaterialSteel Cogs, Aluminum SpiderWeight361 g | Shimano | CS-R7100 12 Speed Cassette CASSETTE SPROCKET, CS-R7100, 105, 12-SPEED, 11-12-13-14-15-1