Shimano RD-R9250 Dura-Ace Di2 12Spd Rear Derailleur

The DURA-ACE RD-R9250 integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length that is compatible with 28-34T low sprockets brings new versatility to the world's best road component group. 

• ・Fastest ever rear shifting, 58% faster than RD-R9150
• ・Compact design includes an integrated wireless unit, charger, and switch
• ・LED status indicator »Battery indicator »Pairing »Adjust mode, etc.
• ・Wider range capacity »Max. low sprocket: 34T
• ・CFRP rear derailleur plate