The Shimano Dura Ace Di2 FD-R9250 makes shifting even faster. Compared to the FD-R9150, currently Shimano's fastest front derailleur, the new design, which weighs under 100 grams, ensures 45% faster shifting at the front. The FD-R9250's frontal attack surface has also been reduced to reduce air resistance.

- Fastest front derailleur ever, 45% faster than FD-R9150
- Slimmer, flatter and lighter
- Front area reduced by 33%
- Weight saving of 96g
- Front switching stages: 2-fold
- Rear gearshift levels: 12-speed
- Largest chainring: 50-54 teeth
- Teeth total capacity: 16 teeth
- Compatible chain: CN-M9100 HG 12-speed
- chain st. Angle: 61-66°
- Chainline: 43.5mm
- Weight according to the manufacturer: 96g

(Translated with Google Translate)