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Leisure Lakes Bikes£146.99Visit shop SunRace CSMZ90 12 Speed Cassette 11-50T Metallic Silver
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The SunRace CSMZ90 12-Speed Cassette is designed for mountain bikers seeking an affordable yet high-performance wide-range drivetrain upgrade. Offering an expansive 11-50T gear ratio, it delivers excellent climbing capability for steep terrain without requiring a specialized freehub body; however, users should note that at 586g, it is heavier than premium carbon or titanium alternatives.
| Model Part Number | CSMZ90WA5M |
|---|---|
| Brand | SunRace |
No, this cassette is designed specifically for standard Shimano HG-style freehub bodies.
No, it uses a standard cassette lockring tool compatible with most Shimano-style systems.
No, you must use a derailleur and shifter specifically designed for 12-speed systems.
The SunRace CSMZ90 weighs approximately 586g.
It features ten steel sprockets for durability and two large 7075 aluminum sprockets to save weight.
Yes, it is generally compatible with standard 12-speed chains, but using the chain recommended by your derailleur manufacturer is advised.
Adjust the B-tension screw on your rear derailleur to increase the gap between the jockey wheel and the 50T sprocket.
Check your derailleur hanger alignment and ensure the cable tension is properly indexed at the shifter.
Ensure the lockring is tightened to the specified torque (usually 40Nm) and verify that no spacers were missed during installation.
Installation of the CSMZ90 requires a standard cassette lockring tool. Ensure the freehub body is clean and free of debris before sliding the cassette on. Because this is a 12-speed cassette, verify that your derailleur is rated for a 50T maximum sprocket capacity and that your chain is sized correctly. To maintain the cassette, periodically clean the sprockets with a drivetrain degreaser and a stiff brush, especially after riding in muddy conditions. Ensure your chain is replaced before it stretches significantly to prevent accelerated wear on the steel and aluminum teeth.
