Originally Posted by
FBinNY
No a hanger won't help.
On a
Mixte frame, the rear brake is attached to the central stays. This avoids the cable routing issues that a seat stay mount causes. But there's never enough room for the cable so SOP if for the yoke to be looped around the seat tube as the OP described. The hanger is integrated in a bridge typically about halfway up the central stays.
What I was mostly curious about was if I abosolutely had to use a double ended straddle, or if I could make something work out of a cantilever cable straddle. I didn't really even know the vocabulary for that particular part.