The Shimano Alivio FD-M3120-D Front Derailleur is a SIDE SWING, direct mount front derailleur designed for 2x9-speed MTB drivetrains. Engineered for smooth and quiet shifting, it provides powerful outward shifts and reliable chain guidance across a wide range of front chainrings (36-22T), making it ideal for trail and rear-suspension mountain bikes.

Its SIDE SWING technology enhances cable routing for lighter lever action, while its wide frame compatibility and adjustable chainline (48.8 mm and 51.8 mm) allow versatile installation on various MTB frames. Additional features such as angled stroke adjust screw, angled clamp band, and 4 link bushings improve precision and durability.

Key Features:

• Model: Shimano Alivio FD-M3120-D

• Series: Shimano Alivio M3100

• Speed Compatibility: 2x9-Speed

• Mount Type: Direct Mount

• Action: SIDE SWING

• Cable Route: Front-Pull

• Chainline: 48.8 / 51.8 mm

• Chainring Compatibility: 36-22T front double

• Total Capacity: 14T

• Chainstay Angle: 64–69°

• Features: Angled stroke adjust screw, angled clamp band, 4 link bushings

• Frame Compatibility: Wide range, supports 2.3-inch tires on wider rims

• Reliable, versatile front derailleur for precise shifting on MTB trails