Originally Posted by
Pcampeau
I had the same problem on my 68 supercourse when I installed this Campy derailleur.
I couldn’t find it myself because I didn’t really know what I was looking for. I had a bike shop order it for me.
I was hoping for silver but they only had black
It doesn’t really draw attention though.
I did find a modern seat tube clamp. It’s 28.6mm
Nice looking SC. That stop is a double for an upper downtube, obviously works just fine for this too. Could have wire brushed off the black and rounded the sharp corners to blend in more, would have been a bit of work.