Shimano Front Derailleur FD-M310 Altus Top Swing 3x 8 Speed 42-48T, 66-69 deg -H
Model: Shimano Altus FD-M310. Outer chainring size: 42–48T. Front derailleur for 3x 7/8-speed MTB drivetrains. Wide link design for rigidity and smoother shifting. Top swing design for compact installation.