Shimano Acera CS-HG41 8-Speed Cassette

High quality 8-speed cassette Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. Gearing gives a low 34T sprocket making it easier to climb even the steepest of hills Sprockets are cut away to reduce weight without reducing rigidity. Nickel-plated finish offers hard wearing resistance to corrosion. Corrosion-resistant steel cassette lockring.