Shimano Alivio M3100 3 x 9-Speed Front Derailleur

Size: 34.9 MM
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Get smooth, quiet shifting across wide-range triple front chainrings with the Shimano Alivio M3100 front derailleur. Side Swing technology increases clearance for large wheels and short chainstays.

  • Features

    • Side Swing technology allows for enhanced cable routing efficiency and provides lighter action and smoother operation
    • Side Swing design also delivers powerful outward shifting and increases clearance for bikes with large wheels (up to 2.3 in. wide tires on wider rims) and short chainstays
    • Wider traction range reduces chain rub for rear suspension bikes, making for a smoother and quieter ride
    • Optimized for 40/30/22-tooth triple chainring combinations and 9-speed chains
    • 50 mm chainline
    • Clamp band mount fits seat tubes from 28.6 to 34.9 mm


    View the Shimano Alivio Product LineView all Shimano Front Derailleurs
  • Technical Specs

    Best Use

    Mountain Biking

    Derailleur Type


    Pull System

    Dual Pull



    Number of Chainrings

    3 Chainrings

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