Shimano Ultegra Di2 12-speed rear derailleur E-tube

now from £379.99

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    price updated: 13/12/2025

    Shimano Ultegra Di2 12-speed rear derailleur E-tube

    Please note: Product may come without standard packaging - This is so we can reduce the cost down for you!The Shimano RDR8150 Ultegra Di2 12-Speed Rear Derailleur combines cutting-edge Di2 electronic shifting technology with a sleek and durable design, delivering quick, smooth, and precise gear changes. Ideal for road cyclists seeking top-tier performance, this rear derailleur enhances riding efficiency and connectivity with advanced features and robust construction.Key FeaturesDi2 Electronic Shifting Technology:Effortless Shifting: Just a light touch, similar to a mouse click, is enough to shift gears quickly and accurately.Wireless Connectivity: The rear derailleur connects wirelessly to the shifters and acts as the system’s charging point and communication hub for ANT+ devices.Shadow Design:Low Profile: Reduces the risk of damage in crashes with its sleek, low-profile construction.Automatic Shifting: Programmed automatic motion at the touch of a switch ensures quick and smooth gear changes.Durable and Lightweight Construction:High Tolerance Materials: Constructed from cold-forged aluminum link plates and body, making it both lightweight and durable.Fluorine-Coated Bushings: Four self-lubricating, micro-machined pivot bushings provide low-friction shifting for smooth performance.Advanced Functionality:Integrated Brains: Acts as the control center for the Di2 system, handling wireless connectivity and charging.Button and LED Indicators: Features a button for Di2 operations and an LED light to indicate synchronized shift mode, setting mode, and charge requirements.Impact Protection: Includes a saver (fuse) function that protects the inner structure from strong impacts.Compatibility:Wide Gear Ratio: Compatible with a wide gear range up to 11-34T.E-Tube Di2: Fully compatible with 12-speed E-Tube Di2 systems.SpecificationsSpeed: 12-speedMaterial: High tolerance cold-forged aluminum link plates and bodyCompatibility: 12-speed E-Tube Di2 systems, gear ratios up to 11-34TDesign: Low profile Shadow designConnectivity: Wireless ANT+ connectivity to third-party devicesOperation: Button for Di2 operations with LED indicatorsProtection: Integrated saver function for impact protectionBenefitsEnhanced Shifting Performance: Di2 electronic shifting ensures precise, effortless gear changes, improving overall ride quality.Robust and Lightweight: Durable construction combined with a lightweight design enhances performance without compromising strength.Seamless Connectivity: Wireless connectivity simplifies setup and provides additional functionality with third-party devices.Advanced Design: Low profile design reduces damage risk, while the automatic shifting feature ensures quick and smooth gear transitions.User-Friendly: Easy to operate with a simple touch, making it accessible for riders of all levels.The Shimano RDR8150 Ultegra Di2 12-Speed Rear Derailleur is a high-performance component that revolutionizes gear shifting for road cyclists. With advanced Di2 electronic shifting technology, a sleek Shadow design, and durable construction, this derailleur offers precise, effortless gear changes and robust connectivity, making it an essential upgrade for any serious cyclist. Find out more...

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    About: Shimano

    Shimano is a leading brand in the cycling industry, renowned for its high-quality components and innovative technology. The company offers a range of cycling products, including drivetrains, brakes, wheels, pedals, and shoes. Shimano's drivetrain components, such as its derailleurs and shifters, are widely regarded as some of the best on the market, providing smooth and reliable shifting for cyclists of all levels. The company's disc brakes are also highly regarded, providing excellent stopping power and modulation. With a commitment to innovation and a focus on the needs of cyclists, Shimano continues to be a go-to choice for cyclists looking for top-of-the-line components for their bikes.

    About: Team cycles

    At Team Cycles, a passion for cycling fuels every revolution of the wheel. Nestled in the heart of the Team Valley Trading Estate in Gateshead, they are more than just a bike shop; they are a family-driven venture, pedaling through the cycle of life for a decade. As a premium Trek bicycle partner store, Team Cycles offers an array of top-tier brands including Trek, Whyte, Rapha, Maap, Garmin, and Wahoo. Whether you're a seasoned cyclist or just beginning your journey, Team Cycles provides the expertise and quality gear to enhance your riding experience.

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