Brand: Shimano
Name: Shimano Ultegra RD-R8050-GS Di2 Rear Derailleur - 11-Speed Medium Cage Black
Model Number: IRDR8050GS
UPC: 689228728806
Color: Black
Speed compatibility: 11
Cable Pull Ratio: 0.0 - This part does not use a cable.
Cage Length: Medium
Actuation: Wireless
Clutch: Unknown
Total Capacity: 39
Top Gear Max: 34
Weight: 242 grams
Chainring Differential: 39
Round/Oval: Round
Material:None