In the aero mod, does the brake cable and housing run inside the bar? Or does the cable exit the brake body next to the bar and the housing run outside the bar and under the bar tape? Eyeing my SR bike...
I think both of these solutions are feasible, though I only saw the in-bar variation. Probably the Modolo Kronos provided the pattern where the cable could be only inside. (There was someone who dropped out of the plastic house's corner to guide the cable under the bar tape.) At the other and later aero levers ( C-Record, Shimano AX and 7400, Aero GC), the out-bar was more common.