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Di2 climbing shifter without brake levers

Does anyone know if I can plug Shimano climbing shifters straight into the junction box on my stem and run them without using the brake lever/shifter units?  I have taken my Di2 off because I really couldnt get on with the levers (put my mechanical SRAM back on) so I have a R8050 system either for sale (about 2000 summer miles, not used through the winter if anyone is interested in it drop me an email stephen.bulpitt [at] yahoo.com) or to be hacked to use with climbing shifters on flat bars for my runaround bike. So, does anyone know if I can run front, rear mechs, internal battery and climbing shifters as a setup?

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Welsh boy | 3 years ago
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Thanks both (Kil0ran and fukawritribr), I will get on eBay and pick up some climbing shifters and put my levers on there. By the way, where did your user names come from?

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kil0ran | 3 years ago
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Yep, that should work. Its effectively the same as sprint shifters on the TT version of Di2

Shifters are pretty dumb in the whole system, they just provide an up/down signal. I used 6770 shifters with 6870 Ultegra Di2 for a while, even though 6780 was nominally a 10 speed group. The clever stuff is in the battery, mechs, and front junction. 

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fukawitribe | 3 years ago
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As far as I know, yep climbing and satellite shifters should work fine - just plug them in and make sure that they're recognised in the e-tube app and setup for whatever function you want them. Sprint shifters may be a different story but that shouldn't effect you, e.g.

https://weightweenies.starbike.com/forum/viewtopic.php?t=153633

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