Shimano Dura-Ace RD-R9250 Di2 12V rear derailleur, the fastest change for the widest range of Dura Shimano ratios, guarantees victories in the race and personal records. The DRA-ACE RD-R9250 gearbox integrates the system charging port and a wireless connection unit, offering a super fast and precise gearbox, worthy of any podium. A single length of the cage compatible with bass sprockets from 28-34D offers new versatility to the best group of street components of the world.

• Faster change than ever, of 58% faster than RD-R9150.
• Compact design includes an integrated wireless drive, a charger and a switch.
• LED status indicator.
• Battery indicator.
• Pairing (pairing).
• Adjustment mode, etc.
• Range of broader relationships.
• Pinone max min.: 34d.
• Rear derailleur platelet in CFRP.