New in Box Shimano GRX Di2 RD-RX815 2x11spd. Rear Derailleur for Gravel Bike

||NEW IN Box||

SHIMANO's GRX, the first Gravel-specific component family designed for both fast progress and safe bike handling on loose surfaces, is the result of an intensive and extensive research, testing and development process that incorporates information and feedback from countless riders on trails, forest tracks, gravel tracks and asphalt all over the world.

Product features

• Use: Gravel, Road, Cyclocross

• Group: GRX Di2

• Model: RD-RX815

• Mount Type: Direct Mount

• Gear front: 2-speed

• Gear rear: 11-speed

• 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