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SunRace M57 Rear Derailleur - 7/8-Speed Long Cage Black. The SuRace M5 Rear Derailleur is designed for 7 and 8-speed MTB drivetrains.11T tension pulley
- TECH SPECS
| Largest Cog | 34 |
| Color | Black |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Drivetrain Speeds | 7 |
| Drivetrain Speeds | 8 |
| Weight | 354 |
| Chain Wrap Capacity (teeth) | 43 |
| Cage Length | Long |