Altus CS-HG31

The Shimano Altus CS‑HG31 cassette delivers reliable shifting performance for 8‑speed drivetrains using HG or IG chains. Its Hyperglide sprocket design ensures smooth, precise gear changes, while enlarged sprocket windows help reduce weight. Finished with a durable zinc‑phosphate coating, the CS‑HG31 is a dependable choice for MTB, hybrid, and touring bikes.

Features

• Compatible with HG and IG chains

• Hyperglide sprocket profile for smooth, consistent shifting

• Enlarged sprocket windows for reduced weight

• Durable zinc‑phosphate finish

• Steel cogs with aluminum spider

• Fits standard Shimano‑type freehub bodies

• Available in multiple gear ranges (including 11‑32T and 11‑30T)

Specifications

• Speed: 8‑speed

• Cog Material: Steel

• Spider Material: Aluminum

• Finish: Nickel

• Freehub Compatibility: Shimano‑type

• Manufacturer Part Number (varies by range): CS‑HG31 Series