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.

Specifications
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

Mfr Claimed Weight
TBC