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They claim 110 reach but weight weenies members say it is more like 94mm.
The STIs appear to have 2 ports each. So can I run a cable from one STI to the other, then connect one STI to the bar endjunction box. From the junction box run a cable to the wireless unit and then from the wireless unit a long cable to the junction box inside the frame? Forgive me but I am noob to Di2 installations.
dancing james
Pretty sure the reach on aeronova is 110mm or 130mm? The junction point definitely isn't far enough along to be inside the bar, instead you can nestle it in the bar opening. Also it takes some time to wire up the bar. I used a cable outer with a kink at the tip to force my way around all the corners pulling string with it, then taped the ewires to string and pull back through.
Along with fitting your brake cable outers it's a good 2-4hrs work depending on your luck, worth it in the end.
Finally, the bars do bend, if you tape your cable down too tight trying to put the Y plastic as far into the bar as you can, it will probably disconnect from the shifter (in my experience)