Quick Summary
The SunRace CSMZ90WA5B is a black, 12-speed bicycle cassette with an 11-50T range. It is listed as Shimano compatible. Check the cassette’s fit with your bike’s drivetrain and rear hub before choosing it.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model | CSMZ90WA5B, a SunRace cassette. |
| Speed | 12-speed. Confirm that the cassette matches the rest of the drivetrain. |
| Gear range | 11-50T, from an 11-tooth smallest sprocket to a 50-tooth largest sprocket. |
| Sprocket sequence | 11, 13, 15, 17, 19, 21, 24, 28, 32, 36, 42 and 50 teeth. |
| Compatibility | Listed as Shimano compatible; verify fit with the exact drivetrain and rear hub. |
| Color and quantity | Black; listed as one item. |
What to Compare Before Buying
- Drivetrain: Match the 12-speed cassette to the bike’s shifter, derailleur and chain specifications. The Shimano compatibility claim does not establish fit with every Shimano-equipped bike.
- Rear hub: Check that the cassette fits the wheel’s freehub body. Confirm the exact requirement for your wheel rather than relying on appearance or brand alone.
- Gear range: Compare the 11-50T range and listed sprocket sequence with the gearing you want and the limits of your existing setup.
Before You Decide
Confirm the exact cassette and hub fit, then check that the rest of the drivetrain supports a 12-speed, 11-50T cassette. Follow the applicable installation instructions for your bike and components.










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