CASSETTE SPROCKET CS-HG500 10 SPEED   Lock in performance with durable construction and robust adjustability SHIMANO HG system Versatile gear range supports a broad range of riding styles Rider tuned 10-speed gear options Material: Steel, Nickel plated Compatible Chain: HG-X 10-speed/HG 10-speed/CN-HG500 Freehub Compatibility: Shimano HG Rear Speeds: 10