Description

SHIMANO Dura-Ace Di2 RD-R9250 Shadow 12-Speed Rear Derailleur
Elevate your road cycling to its ultimate potential with the SHIMANO Dura-Ace Di2 RD-R9250 Shadow E-Tube DM Rear Derailleur, the absolute pinnacle of drivetrain technology. Engineered for cyclists who refuse to compromise, this rear gear is the central nervous system of the 12-speed Di2 platform, delivering a level of speed and precision that redefines performance. It is more than a component; it is your decisive advantage on the road, whether you are attacking a climb, sprinting for the finish line, or navigating a fast-paced peloton.
The Dura-Ace RD-R9250 integrates the system charging port and a wireless connectivity unit, all while delivering super fast, precise shifting worthy 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. This intelligent design streamlines your bike´s aesthetics and aerodynamics by housing the system´s “brain” in a compact, protected unit. The result is an incredibly clean and efficient setup that performs flawlessly under the most demanding conditions.
Experience a monumental leap in shifting performance. This derailleur offers the fastest-ever rear shifting from SHIMANO, a staggering 58% faster than the previous generation RD-R9150. This incredible speed means gear changes are instantaneous, reliable, and perfectly smooth, even under maximum pedaling load. You can shift with absolute confidence, knowing the chain will move to the intended cog with digital precision every single time, allowing you to maintain your rhythm and power output without interruption.
The integrated, compact design is a marvel of engineering, consolidating the wireless unit, the charging port, and the function switch into one sleek package. This eliminates the need for extra wires or junctions, simplifying installation and maintenance. At a glance, the integrated LED status indicator provides critical information, displaying current battery level, pairing status for components, and giving access to adjustment modes, putting full control and system diagnostics right at your fingertips.
Versatility is at the core of the RD-R9250. With an expanded wider range capacity, a single cage design now accommodates a maximum low sprocket of 34T. This gives riders unprecedented freedom to choose the perfect cassette for any terrain, from flat criteriums to grueling mountain stages, without needing to change derailleurs. This adaptability ensures you always have the right gear for the moment. Built with a lightweight yet incredibly strong CFRP (Carbon Fiber Reinforced Polymer) rear derailleur plate, the construction ensures maximum rigidity for crisp shifting while shaving precious grams, contributing to a lighter, faster machine. The proven SHIMANO Shadow RD low-profile design tucks the derailleur safely under the cassette, protecting it from potential damage and ensuring consistent performance.
Technical Specifications:
* Attribute: Long
* Use: Road Cycling
* Series: Dura-Ace R9200
* Gearing: 12-speed
* Technology: Di2, E-Tube, Shadow RD
* Low Sprocket – Max: 34T
* Low Sprocket – Min: 28T
* High Sprocket – Max: 11T
* High Sprocket – Min: 11T
* Total Capacity: 37T