SHIMANO 105 Di2 Front Derailleur 2x12-speed

Di2 brings precise, coordinated front shifting to SHIMANO 105

SHIMANO Di2 electronic shifting lets you change from the big to small chainrings, or vice versa, whenever you like while minimizing the risk of a dropped chain. Similarly, you can perform rear shifts without the need to trim the front derailleur to avoid chain rub.

Full- and semi-synchronized shifting functions can be selected using the E-TUBE app. With digitally accurate electronic shifts and coordinated communication between shifters and derailleurs, the new SHIMANO 105 front derailleur offers the best shifting you've ever experienced.

Features

• Powerful, accurate, smooth front shifting
  • Programmed chain guide control by automatic trim
  • SHIMANO SYNCHRONIZED SHIFT
  • Manual, full- and semi-synchronized shifting program
• Top gear teeth capacity: 50-52T

Specifications:

• Average weight: 142
• Front speeds: 2
• Rear speeds: 12
• Compatible chain: HG 12-speed
• Action|Down Swing: ✔
• Mount|Brazed-On: ✔
• Chain line (mm): 44.5
• Chain stay angle (deg.): 61-66
• Top gear teeth: 50-52T
• Total capacity: 16T
  Specifications subject to change