Shimano ULTEGRA Di2 RD-R8050 11-speed Rear Derailleur GS

The ULTEGRA Di2 RD-R8050 rear derailleur features Shimano’s Shadow RD design and incorporate these new cockpit functions. The electronic rear derailleur is compact and designed to protect the shifting operation in the event of a crash.

The Di2 (RD-8050) or mechanical (RD-R8000) rear derailleur (RD) adopts the Dura-Ace low-profile Shimano Shadow RD design to sit fully under the cassette, tucked away from potential damage. The RD comes in a short cage (SS) design to cover 11-25T to 11-30T and a longer cage (GS) design to cover 11-28T to 11-34T. Both front and rear Di2 derailleurs communicate with each other to operate full or semi Synchronized Shifting mode, allowing the rider to maintain concentration on the road or the race ahead.

GS Version - for Cassettes up to 34 teeth

Product features

Use: Road
Group: Ultegra Di2
Model: RD-R8050-GS
Cage: medium
Mount Type: Direct Mount
Gear rear: 11-speed
Compatible Chain: HG-EV 11-speed / HG-X 11-speed
Max. teeth large sprocket: 34T
Min. teeth large sprocket: 28T
Max. teeth small sprocket: 12T
Min. teeth small sprocket: 11T
Max. Front Difference: 16T
Total Capacity: 37T
Compatible: EW-SD50
Master unit: No
Firmware update by E-tube Project: Yes
E-tube port (pcs): 1
E-tube connector (pcs): 0

Weight

249g (manufacturer information)

1 x Shimano Ultegra Di2 11-speed Rear Derailleur RD-R8050 GS

Shimano ULTEGRA Di2 RD-R8050 11-speed Rear Derailleur GS