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3 days ago

Shimano Ultegra Di2 RD-RX805 Rear Derailleur

$ 299.99   -33%
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The challenges of rough road and gravel riding are specifically endured by the Ultegra Di2 RD-RX805 Rear Derailleur. Engineered to handle the demanding conditions of off-road terrains, reliable and precise shifting performance is provided even in rugged environments. Part of Shimano's Ultegra Di2 series, it is known for its advanced electronic shifting technology and durability, making it an ideal choice for cyclists who venture into rough and unpredictable riding surfaces.


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Equipped with a clutch system that enhances shifting performance while minimizing chain slap noise, the Ultegra Di2 RD-RX805 Rear Derailleur proves to be an ideal choice for rough roads and gravel riding. Versatile in design, it offers compatibility with both 1x and 2x drivetrains, along with Shimano Di2 shifters.

Tailored for rough roads and gravel riding, the Ultegra Di2 rear derailleur features a low-profile Shadow design, helping avoid damage from impacts. Improved shifting precision and reduced chain slap noise are achieved through the incorporated clutch system.

With a durable alloy construction ensuring longevity for on- or off-road use, this rear derailleur's long cage can accommodate up to a 34t sprocket, providing versatility in gearing options. The integration of Di2 electronic shifting delivers precise performance and allows for customization, contributing to a smooth and enjoyable riding experience for years to come.


The specifications for the Ultegra Di2 RD-RX805 Rear Derailleur include:

Long cage: 39t
Cassette Range:
Long cage: 11-28t through 11-34t
2 x 11
Shimano Ultegra R8050 and 6870 Di2
Shimano Dura-Ace R9150 and 9070 Di2
These specifications showcase an alloy construction, a long cage with a capacity of 39t, and compatibility with specific Shimano Ultegra and Dura-Ace Di2 components. The cassette range for the long cage extends from 11-28t through 11-34t, providing a range of options for gearing.

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