The Shimano CS-HG500-10 is a 10-speed cassette with a wide range of use - from MTB to City & Touring to Road. Use it on an 8-, 9- or 10-speed MTB or Road rear hub, 11-speed MTB rear hub or on an 11-speed Road freehub, where an additional 1.85 mm spacer is required. The Hyperglide (HG) technology provides a fast, precise index shifting function via special tooth profiles and ramps.