The SHIMANO GRX Di2 RD-RX815 delivers electronic shifting precision engineered for gravel and adventure riding.
Its SHADOW RD+ chain stabilisation system ensures quiet, smooth operation across demanding terrain, while Di2 technology provides reliable, instantaneous gear changes. Built to handle the rigours of off-road cycling, this 2x11-speed rear derailleur combines durability with responsive performance for riders tackling unpredictable surfaces.
Features
- Adjustable chain stabilizer prevents chain slapping and drops
- Switch stabilizer ON/OFF to match the terrain
- Gravel-tuned clutch tension
- Silent and uninterrupted rear shifting on rough terrain
- Smooth and reliable mixed surface shifting
- Compatible with current road DUAL CONTROL LEVER
Specification
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Use: Gravel, Road, Cyclocross
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Group: GRX Di2
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Model: RD-RX815
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Mount Type: Direct Mount
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Gear front: 2-speed
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Gear rear: 11-speed
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Compatible Chain: HG-EV 11-speed, HG-X11
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Max. teeth large sprocket: 34T
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Min. teeth large sprocket: 30T
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Max. teeth small sprocket: 11T
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Min. teeth small sprocket: 11T
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Max. Front Difference: 17T
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Total Capacity: 42T
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Master unit: No
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Firmware update by E-tube Project: Yes
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E-tube port (pcs): 1
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E-tube connector (pcs): 0
Pulley Cage
Material
Weight
Contents
- 1 x Shimano GRX Di2 RD-RX815 11-Speed Rear Derailleur
