Shimano Alivio FD-M3100-M 前拨链器 3x9速 34.9mm Side Swing

The Shimano Alivio FD-M3100 3x9-speed front derailleur features Shimano's Side Swing technology for improved cable routing, smooth operation, and effortless handling. The new design offers an extra-wide gear range for triple cranksets and also provides more clearance for larger wheels and shorter chainstays.

• Chainline: 50 mm
• More powerful upshifting
• For triple crankset

• 1 x Shimano Alivio FD-M3100-M front derailleur 3x9-speed 34.9mm Side_Swing (see item description for details)