The Perfect Glide Shimano's Altus CS-HG201 is perfect for 9-speed mountain bike drivetrains and offers HYPERGLIDE shifting technology and a silver finish. Hyperglide Technology The inner outer plate of the HG chain is designed for efficient contact with gear teeth and allows smooth shifting under high load. The chain achieves a higher pedalling efficiency and is perfectly matched to HG sprockets to ensure quick shifting.

9-speed: 

 • Shimano Series: Altus M2000

 • Quick and easy assembly with cassette sprocket cap • Hyperglide sprockets guide chain for quick, direct and quiet changes • Close gear steps between primary sprockets creates smooth, comfortable pedalling • Compatible chain: HG 9-speed • Rust-resistant surface treatment