SunRace CS-M90 Cassette — 9-Speed, 11–34T (Black)

The SunRace CS-M90 cassette is a durable, service-proven 9-speed MTB cassette designed for smooth shifting, wide-range gearing, and everyday reliability on mountain, hybrid, and commuter bikes.

Built with SunRace Super Fluid Drive™ technology, the CS-M90 delivers consistent, predictable gear changes with improved chain engagement across the cassette. Steel cogs and a steel lockring provide excellent wear resistance, making it a strong choice for high-mileage bikes and demanding conditions.

With a wide 11–34T range, this cassette offers climbing-friendly low gearing while maintaining usable steps for cruising and trail riding. It installs on standard Shimano HG-compatible freehub bodies and serves as a direct functional equivalent to several popular Shimano 9-speed cassettes.

Product Details

• 9-speed MTB cassette

• Super Fluid Drive™ technology for smooth, reliable shifting

• Durable steel cogs and lockring

• Approx. 350g

• Shimano equivalent: CS-HG50 / CS-HG30 / CS-HG20

Specifications

• Speed: 9-Speed

• Gear Range: 11–34T

• Cog Sequence: 11, 12, 14, 16, 18, 21, 24, 28, 34

• Color: Black

• Freehub Compatibility: Shimano HG

Best For

• 9-speed mountain, hybrid, and commuter bikes

• Wide-range gearing for climbing and mixed terrain

• Service replacements and drivetrain refreshes

• Riders prioritizing durability, compatibility, and value