Shimano RD-R9250 Dura Ace Di2 12 Speed E-Tube Rear Derailleur – Black

Shimano’s 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 Shimano 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 bringing new versatility to the world’s best road component group.

Key Features:

• Shimano’s 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

Direct Mount Rear Derailleur
Rear wheels are easier to remove with a mounting option for SHIMANO SHADOW RD and SHIMANO SHADOW RD+. The direct mount feature is designed to suit a wide range of contemporary frames with large-section chainstays, in particular, mountain bikes with thru-axle dropouts. Allows for flexible frame design No special tooling requirement (M10x1 Mount bolt, without e-clip) Easier to install rear wheel

E-Tube Project:

Customizable Settings Off The Bike
SHIMANO’s genuine application E-TUBE PROJECT for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-TUBE PROJECT for the Windows V4 application.

Shimano Shadow RD
The mechanism rear derailleur, SHIMANO SHADOW RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chainstay in rough riding conditions. The result is smooth and silent performance.