I'm trying to put together [cheaply] a Performance brand MTB frame with top routing/guides. Two of the top guides have stops for the cables/ferrules but the rear brake guide does not. The frame and add-on fork are disc capable but I don't have disc capable wheels or disc brakes [just cheap V brakes.] The guide does seem to have a small set screw type socket.
Does anyone know of an adapter or method to either route the cable jacket the entire length (it fits the mount loosely) or stop the cable/ferrule and run the bare cable over the top tube?