Alivio RD-M3100 9-Speed

Shimano Alivio RD-M3100 9-Speed Rear Derailleur

The Shimano Alivio RD-M3100 rear derailleur features SHIMANO SHADOW RD technology for a low-profile design that stays protected and stable on rough terrain. Built for 9-speed drivetrains, it delivers smooth, reliable shifting for trail, touring, and everyday riding.

Key Features

• SHIMANO SHADOW RD low-profile design

• Smooth and stable shifting performance

• Wide-range compatibility for modern cassettes

• Integrated barrel adjuster for easy tuning

Specifications

• Speed: 9-speed

• Cage: SGS (long cage)

• Total Capacity: 45T

• Max Low Sprocket: 36T

• Min Sprocket: 11T

• Max Front Difference: 22T

• Mount: Standard

• Spring Type: Shadow

• Color: Black