The Shimano Tiagra CS-HG500 10-Speed Cassette Sprocket locks in performance with durable construction and robust adjustability. The versatile gear range supports a broad range of road riding styles. Optimized for CN-HG500 or HG-X 10-speed / HG 10-speed chains. Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity. | Shimano Tiagra CS HG500 10 Speed Cassette Sprocket