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