Shimano Shimano Dura-Ace R9250 Di2 Shadow rear derailleur

Rear Derailleur. 12-speed. Our fastest ever shifting across SHIMANO's widest ever DURA-ACE gear range, the RD-R9250 is capable of both race wins and personal bests. 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.

• Compact design includes an integrated wireless unit, charger, and switch
• LED status indicator
• Battery indicator
• Adjust mode, etc.
• Wider range capacity
• Max. low sprocket: 34T
• CFRP rear derailleur plate
• Average weight: 215 g
• Max. front difference: 16T
• Total capacity: 37T
• Low sprocket: 30T-34T
• Top sprocket: 11T
• SD300 port
• Charging port
• Charging cable: EW-EC300