Pavarų perjungimo svirtis: SHIMANO DURA-ACE Di2 FD-R9250 2x12 priekinė žvaigždė - žemyn svyruojanti

Despite its smaller and lighter design, the DURA-ACE FD-R9250 delivers the fastest front shifting. The fastest riders have been fitted with the DURA-ACE FD-R9250 derailleur. Weighing under 100 grams, the new design shifts 45% faster than the Shimano FD-R9150 The front end of the FD-R9250 is also lowered to achieve better aerodynamic drag. Fastest derailleur, 45% faster than the FD-R9150 Smaller, more compact, lighter Frontal area reduced by 33% Weight reduced to 96 g Maximum large derailleur size 50-54z Model FD-R9250 DURA-ACE R9200 Series Weight 96g Down Swing Chainline (mm) 44.5 Compatible HG 12-speed chain Maximum number of teeth 50-54z Front speed 2 Rear speed 12 Firmware update E-TUBE PROJECT SD300 port (pcs) 1