Originally Posted by
NatUp
No, sorry, that actually IS the brake cable. What you can't see is the narrow portion of the head, because it is inside the hole of the cable stop. I know it is the brake cable because A) it has a mushroom-shaped head with small and large diameter portions, B) the cable itself is thicker than the shifter cables, and C) I had to cut a standard mountain brake cable head off of the other end of the cable.
OK, sorry. I based it on the general appearance of what I could see.
OTOH, I've never seen a brake cable that wouldn't fit Campy levers. Did you test the diameter of the larger part of the head by trying to put it into the pocket backward?
BTW- the pocket is shallow, and many heads stick out the far end when properly inserted. You'll typically see about 1/3-1/2 of the head sticking out.