Shimano Cs-hg31 8-speed Cassette

Key features:high quality 8-speed cassettehyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadsprockets are cut away to reduce weight without reducing rigiditynickel-plated finish offers hard wearing resistance to corrosioncorrosion-resistant steel cassette lockringfor 8-speed hg chains

Key features:high quality 8-speed cassettehyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadsprockets