SunRace MZ 12-Speed MTB Cassette – Precision Shifting for Demanding Trails

Engineered for mountain bikers who crave smooth gear transitions across challenging terrain, the SunRace MZ 12-Speed Cassette delivers an ultra-wide 11-51T gear range with optimized cog spacing. Its ED Black coating resists wear while maintaining a stealthy aesthetic.

Key Features:

• 12-speed compatibility: Perfect for modern 1x drivetrains (Shimano/SRAM 8/9/10-speed freehub bodies).
• Progressive gear ratios: Balanced steps between cogs (11-13-15-17-19-21-24-28-33-39-45-51T) eliminate harsh jumps.
• Lightweight durability: Precision-machined steel cogs weigh just 648g, reducing rotational mass.

Why Riders Choose It:

Climb steep singletracks effortlessly with the 51T granny gear, then accelerate on descents using the 11T high-speed cog. The broad range suits enduro, trail, and all-mountain riding—no front derailleur needed.

Vs. Competing Cassettes:

Ideal for riders upgrading to a 12-speed MTB groupset or replacing worn cassettes on gravel/adventure bikes. Shifts crisply under load, backed by SunRace’s reputation for reliable drivetrain components.