Shimano CS-HG50 Sora Bicycle Cassette (8-Speed, 12/21T, Silver)

Shimano Shimano CS-HG50 Sora Bicycle Cassette (8-Speed, 12/21T, Silver) 18578M

• Incorporates shift ramps and specially contoured tooth profiles
• Improved chain control to provide a fast and precise shift
• Plated sprockets for smooth performance and improved durability
• Drilled out sprockets for weight savings over previous model

Computer designed HyperGlide shift ramps and tooth profiling for faster, more precise shifts