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SunRace CSMZ903 Cassette - 12-Speed 11-51t Black Chrome. The SunRace MZ 12-Speed Cassette offers a wide ratio design.
- TECH SPECS
| Color | Black Chrome |
| Range | 11-51 |
| Cassette Cogs | 11-13-15-17-19-21-24-28-33-39-45-51 |
| Cassette Body Type | Shimano/SRAM 8 9 10 Speed |
| Drivetrain Speeds | 12 |
| Weight | 497 |
| Defined Color | Black |