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