The RD-R9250 model, the fastest derailleur for the widest range of Shimano Dura-Ace gears, guarantees race wins and personal records. The Dura-Ace RD-R9250 derailleur integrates a wireless connection unit, offering super fast and precise shifting worthy of any podium.

Features

Faster derailleur than ever, 58% faster compared to RD-R9150.
The compact design includes an integrated wireless unit, a charger, and a switch.
LED status indicator.
Min-Max sprocket: 34T
Min-Min sprocket: 28T
Max-Max sprocket: 11T
Max-Min sprocket: 11T
Max front difference: 10T.
Pulley teeth: 11T.
Cage: SGS.
Actual weight: 217 g.

Technologies

Direct Mount Rear Derailleur

Rear wheels are easier to remove with a mounting option for Shimano Shadow RD and Shimano Shadow RD+ derailleurs. The direct mount is designed for a wide range of modern frames with large-section chainstays, especially for mountain bikes with thru-axle dropouts. High flexibility regarding frame design. No special tools required (M10x1 mounting bolt, no e-clip)!

Shimano Shadow RD

Thanks to the Shimano Shadow RD mechanism, the new derailleur is designed for a more aggressive riding style. The low-profile design offers numerous advantages as well as a unique tensioning system that prevents the derailleur from contacting the chain on very rough terrain. The result is efficient and very quiet operation.

Language

Shimano Dura Ace Di2 RD-R9250 12-Speed Derailleur

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