
Installation Guide: 10-speed and 11-speed Di2 road Rear Derailleur
Bought a new Di2 rear derailleur and need some help installing it? Read how to install the RD-R8050 / RD-R9150 / RD-6870 / RD-9070 Di2 rear derailleurs.
The Ultegra R8050 GS medium cage rear derailleur is compact and designed to protect the shifting operation in the event of a crash.
It features ergonomic shifting without stress, supports synchronized shift and has a low profile design.
The medium cage version supports 11-28T to 11-34T.
Youtube mechanic Free To Cycle has a pretty good RD-R8050 Installation video on his channel. Alternatively, head over to the installation guides section of the site for all of my installation guides.
Bought a new Di2 rear derailleur and need some help installing it? Read how to install the RD-R8050 / RD-R9150 / RD-6870 / RD-9070 Di2 rear derailleurs.
Indexing, trimming, or fine-tuning Di2 rear derailleurs is done through micro-adjustment. Read how to set up your Di2 rear derailleur perfectly and ride without those grinding noises.
Shimano front derailleur and rear derailleur specifications... what do they mean, really? This page explains all of them, and why they matter.