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Shimano
GRX RD-RX817 11-Speed Di2 Rear Derailleur

Mfg PartNum:IRDRX817
$319.99
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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.

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