SunRace M37 Rear Derailleur - 7-Speed, Long Cage, Black

The SunRace M3 Rear Derailleur is designed for 7-speed MTB drivetrains. Indexed adjuster Color: Black Largest Cog: 30 Rear Derailleur Mount Type: Shimano Rear Direct Mount Chain Wrap Capacity (teeth): 37 Cage Length: Long Rear Der/Shifter Compatibility: S