Shimano Dura Ace Di2 RD-R9250 12S rear derailleur
The 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.
Features
- Our fastest ever rear shifting, 58% faster than RD-R9150.
- Compact design includes an integrated wireless unit, charger, and switch.
- LED status indicator.
- Fluoric coated link bushings: 4.
- Low sprocket-Max.: 34T.
- Low sprocket-Min.: 28T.
- Max. front difference: 16T.
- Pulley teeth: 11.
- Top sprocket-Max.: 11T.
- Top sprocket- Min.: 11T.
- Real weight: 217 g.
Technologies
Shimano Shadow RD
The rear derailleur Shimano Shadow RD mechanism 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 chain stay in rough riding conditions. The result is smooth and silent performance.
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)!