These Ultegra ST-6770 Di2 dual control levers allow you to shift and use the brakes. They weigh 160g each. Although they are part of the 6770 10-speed series, you can also use them to shift any other Di2 series derailleur. This means that if you have an older Di2 bike that you want to upgrade to a newer (rim brake) Di2 series, you can keep your shift levers.
Each shifter has two e-Tube ports each and no dedicated sprint shifter port. The SW-R610 sprint shifters will not work with these levers.
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Modern Di2 shift levers have buttons on top of the hoods, but unless you're on 12-speed Di2, their default function only works with a wireless unit or d-fly. Learn how to set these buttons to shift derailleurs.
Learn how to install Di2 drop bar levers commonly used on Di2 road bikes or Di2 gravel bikes. I'll walk you through the process and give you some useful tips.
Do you have small hands? Or extra large hands? Read this page to figure out how to change your Shimano Di2 shift lever (or shifter) reach.
Below is an overview of all known firmware updates for this component. The changelog texts are Shimano's, and quite often they're a bit cryptic - sorry!
3.2.0
Additional function for ANT- D-FLY Channel switch setting for cycle computer
3.1.0
Firmware updated
3.0.1
Update accompanied with SW-S705
3.0.0
Adjust compatibility
2.2.0
Improving usability of data uploading
2.1.0
Enhancement of function
2.0.2
Firmware updatedEnergy saving by updating ver.2.0.1 or later version
1.0.1
Firmware updated
