Shimano CS-HG51 8 Speed Cassette

High quality 8-speed cassette
Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
Close ratio gearing allows a more efficient use of energy through finer cadence control
Sprockets are cut away to further reduce weight without reducing rigidity
Nickel-plated finish offers hard wearing resistance to corrosion
Corrosion-resistant steel cassette lockring
For Narrow 8-speed HG chains

- 11, 13, 15, 17, 19, 21, 24, 28t
- 11, 13, 15, 17, 20, 23, 26, 30t
- 11, 13, 15, 18, 21, 24, 28, 32t