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SunRace M903 Rear Derailleur - 9-Speed Short Cage Black. The SunRace M9 Rear Derailleuris designed for 9-speed MTB drivetrains.
- TECH SPECS
| Largest Cog | 42 |
| Color | Black |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Drivetrain Speeds | 8 |
| Drivetrain Speeds | 9 |
| Weight | 240 |
| Cage Length | Short |