The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design.

- Low-profile design

- Adjustment barrel

- Compatible chain: Chain 9 Speeds

- Min. top sprocket: 12T

- Max. low sprocket: 36T

- Total capacity: 45T

- Cage: SGS long

- Gears: 9-speed