Re: "Rod Brakes"
Two of my motorcycles have rod actuated rear brakes. Number one, they ares stronger than bicycle cables, and two, they don't stretch like bicycle cables. What they give up in strength is flexibility. Obviously they cannot be bent around the frame or operated from a curve the way cables can. I have fabricated them from 3/16" or 1/4" rod with good results.
"If bulls didn't have horns, everyone would be a Matador".