Dependable, quick shifting awaits with Shimano's new CS-HG51 8-Speed Cassette. It features plated steel sprockets mounted to a carrier for an ideal blend of durability and low weight. Plus, the cogs are ramped and machined for those flawless quick shifts that Shimano is known for.

Incorporates shift ramps and specially contoured tooth profiles
Improved chain control to provide a fast and precise shift
Nickel plated sprockets for smooth performance and improved durability
Drilled out sprockets for weight savings over previous model
Shimano DEORE, XT, LX, ALIVIO, ACERA,or SRAM 8 speed compatible
Silver
295 grams