Shimano CS-LG400 Link Glide 10-speed cassette LinkGlide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. The new CS-LG400 LinkGlide 10-speed cassette is both light weight and durable. Sprockets are cut away and drilled to reduce weight without reducing rigidity. For use with 10-speed LinkGlide chains.