Shimano Alivio RD-M3100-SGS 9-Speed Rear Derailleur

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. 

Features:

・Low-profile design

・Total capacity: 45T

・Max. low sprocket: 36T

・Adjustment barrel