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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)
mdle-
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.
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you're right, didn't look at the reach. That doesn't look like it will work with the long reach. 440mm width + (104x2)208mm = 648, which is more than the 2 parts of the Y-cable combined.
@dancing james I used a 350mm for my front mech, which is a pretty perfect fit.
{But with those huge bars (wide and long reach) I don't think the 1200mm from EW-RS910 to SM-JC41 will fit.. I don't even think the biggest size (1400mm) will fit.. }Smart, use a 400mm from the bar end junction to your wireless unit and a 1200mm to the SM-JC41.BTW, didn't know you could link up shifters with the extra ports on them. You sure that works?
dancing james
Jaap
Isn't they Y junction meant to be inside the bars? Don't all the cables go inside them? Also is the reach on the aeronovas that long? On weight weenies people were saying it's about 94mm which should be fine for me. previous bars were 80mm but with previous generation di2/hydro and new shifters have 1cm less reach.