I just picked up a new aluminum mtb frame from performance bike. My plan was to strip all the old parts off an old Trek 930 I had and build up a basic bike for my son on the x-tra small frame. After a bit of research, I thought the only thing that wouldn't swap directly was the bottom bracket, so I bought one of those.
However, after looking at the frame, the cable routing braze-on thingies across the top tube are for 2 regular 'exposed' cables and what looks like a larger hole to route a hydraulic line on the left side (I assume this, never worked on a bike with disc brakes).
Anyway, I know I could just get a new brake cable and run it all the way to the back inside the casing (using the larger channel), but was wondering if anyone made a little fitting that would fit inside the large side of the braze-on connector and make it smaller to accept a regular brake line with exposed cable.
I don't have a camera with me at work right now, but will take some pics tonight if this doesn't make sense.