The fastest just got faster thanks to the DURA-ACE FD-R9250 Di2 electronic front derailleur. Tipping the scales under 100 grams, the new design shifts 45% quicker than Shimano's FD-R9150, already the fastest on the market. The frontal area of the FD-R9250 is also reduced, decreasing aerodynamic drag.
45% faster shifting than FD-R9150
Frontal area reduced by 33%
Weight cut to 96 g
Top gear teeth capacity: 50-55T