Shimano Altus Cassette HG31 8 Speed

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.

• MegaRange gearing gives a super-low 34T sprocket making it easier to climb even the steepest of hills
• Sprockets are cut away to reduce weight without reducing rigidity
• Nickel-plated finish offers hard wearing resistance to corrosion
• Corrosion-resistant steel cassette lockring
• For 8-speed HG chains