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
-
Use: Gravel, Road, Cyclocross
-
Group: GRX Di2
-
Model: RD-RX815
-
Mount Type: Direct Mount
-
Gear front: 2-speed
-
Gear rear: 11-speed
-
Compatible Chain: HG-EV 11-speed, HG-X11
-
Max. teeth large sprocket: 34T
-
Min. teeth large sprocket: 30T
-
Max. teeth small sprocket: 11T
-
Min. teeth small sprocket: 11T
-
Max. Front Difference: 17T
-
Total Capacity: 42T
-
Master unit: No
-
Firmware update by E-tube Project: Yes
-
E-tube port (pcs): 1
-
E-tube connector (pcs): 0
Pulley Cage
Material
Weight
Contents
- 1 x Shimano GRX Di2 RD-RX815 11-Speed Rear Derailleur
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
