Shimano Deore Double Front Derailleur - 2x10 Speed - Side Swing - FD-M4100-M

Shimano SIDE SWING technology
Enhanced cable routing, light action, and increased clearance for large wheels and short chain stays
Smooth and quiet front shifting on the trail
More powerful outward shifting
Wider traction range reduces chain rub for rear suspension bikes
Extra wide range with front double 36-26T
Wider tire clearance
Compatible with 2.3-inch tire on wider rims
48.8/51.8mm chainline
Chainstay Angle: 64-69 degrees
Total Capacity: 10t
Top Gear Teeth: 38t
Mount: mid-clamp, 34.9mm band clamp (includes shims for 28.6mm and 31.8mm seat tubes)
Speeds: double (2x10)