Shimano Alivio FD-M4020 Side Swing Front Derailleur

The Shimano Alivio FD-M4020 series 2x9 front derailleurs use Shimano's SIDE SWING for enhanced cable routing, light action, and smooth operation. The new design also increases clearance for large tires and short chainstays.

- Wider clearance for large tires
- Compatible with shorter chainstay
- Efficient cable routing
- Optimal front system for internal cable routing
- Enhanced maneuverability with plus-sized tires
- Increased shifting efficiency and light operation force
- Smooth shifting performance