SunRace CS-M66 Cassette — 8-Speed, 11–32T (Nickel)

The SunRace CS-M66 cassette is a reliable, service-proven 8-speed cassette designed for smooth shifting, durability, and broad compatibility across road, mountain, hybrid, and commuter bikes.

Built using SunRace Super Fluid Drive™ technology, the CS-M66 delivers consistent, predictable gear changes with reduced noise and improved chain engagement. Steel cogs and a steel lockring provide excellent wear resistance, making this cassette a strong choice for high-mileage bikes and everyday riding.

With an 11–32T range, it offers a versatile spread of gearing that balances climbing ability with comfortable cruising—ideal for recreational riders and practical service replacements. It installs on standard Shimano HG-compatible freehub bodies and serves as a direct functional equivalent to several popular Shimano 8-speed cassettes.

Product Details

• 8-speed cassette

• Super Fluid Drive™ technology for smooth shifting

• Durable steel cogs and lockring

• Corrosion-resistant nickel finish

• Approx. 350g

• Shimano equivalent: CS-HG50 / CS-HG51 / CS-HG41

Specifications

• Speed: 8-Speed

• Gear Range: 11–32T

• Cog Sequence: 11, 13, 15, 18, 21, 24, 28, 32

• Color: Nickel

• Freehub Compatibility: Shimano HG

Best For

• 8-speed road, MTB, hybrid, and commuter bikes

• Service replacements and drivetrain refreshes

• Riders prioritizing durability, smooth shifting, and value