Shimano Grx DI2 RD-RX815 Rear Derailluer 34T


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  • The Shimano GRX 11-speed Di2 rear derailleur integrates electronic shifting with silent and uninterrupted rear operation on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops.

    - For 1x and 2x drivetrains
    - Operates with Shimano Di2 for digital electronic shifting
    - Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
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