Shimano DURA-ACE FD-R9250 12sp Front DerailleurDespite its smaller, lighter design, the DURA ACE FD R9250 brings the fastest front shifting on the market. The fastest just got faster thanks to the DURA ACE FD R9250. 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. Fastest ever front shifting, 45% faster than FD R9150 Smaller, sleeker,