I just run my hose under the top tube with cableties. I later found a pack of different colour ones to custom colour match all the other bits. Its doesn't look very tidy but when I sell the frame the brakes I'm keeping. But my bike isn't a looker its a bit of a clunker that just gets ragged, if I wanted it to look as best I could make it, it would have to be some trick cantis or v's