Di2 Compatibility - mix Ultegra, DURA-ACE, XTR, XT and GRX components
Did you know that you can mix Di2 components from different series and categories? Mixing derailleurs is not recommended, but anything else is fair game!
The Shimano SW-R9150 remote satellite shifter can be positioned anywhere on the bike's handlebars. They're used for quicker shifting during climbing when the rider's hands are on the bars.
These switches effectively replace the SW-R610 sprint shifters, that only work in dedicated sprint shifter ports as found on the ST-6870, ST-9070, ST-R8050 and ST-R9150. The SW-R9150 will work in normal E-Tube ports, meaning that you can also use them with hydraulic shift levers (ST-R8070 / ST-R9170 and GRX).
The wire length on these switches is 261mm (each).
These satellite shifters are 12-speed compatible, if you update them to firmware version 3.3.0 or newer.
In order to update these shifters, either connect them to the SM-PCE02 or SM-PCE1 on their own, or connect them to an 11-speed Di2 bike and use the SM-BCR2 charger to run the firmware update.
These shifters have to be connected to the BT-DN300 battery by wire. They will not function if there isn't a wired connection between them and the battery.
You could plug them into one of the wireless shift levers, but they won't work unless you then connect the shift levers to the battery by wire.
Note: if you're on 12-speed Di2 and you are using regular Dura-Ace, Ultegra, or GRX shift levers, then consider using SW-RS801-T (climbing shifter) / SW-RS801-S (sprint shifter) / SW-RS801-E (TT extension).
These do not require a wired path to the battery, they simply plug into the buttom port of a shift lever (except for 105 shifters).
Did you know that you can mix Di2 components from different series and categories? Mixing derailleurs is not recommended, but anything else is fair game!
Building a 12-speed Di2 Time Trial (TT) or Triathlon bike isn't as straightforward as you might think. What components can you use, and how do you connect them?
I built and set up my own cheap Di2 satellite shifters.
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!
3.3.0
Adapted for new DURA-ACE R9200 Series and ULTEGRA R8100 Series.
3.2.1
-Added interchangeability between SHIMANO STEPS with Road components.- Adopted models (ST-R8070/ST-RX815)
3.1.0
Additional ANT function for D-FLY channel switch setting (cycle computer setting)
3.0.1
Firmware uploaded