Shimano Alivio CS-HG51-8 8-Speed Cassette

Shimano CS-HG51 8-Speed cassettes feature Hyperglide technology for reliable shifting performance and chrome plated steel gears for added corrosion resistance.

• Hyperglide technology provides smooth shifting
• Chrome plated steel gears and lockring
• Compatible with Shimano HG and IG chains
• Drilled cogs reduces weight