I have a Columbus Zonal tubing frame with carbon rear stay (Top tube 54.5cm and seat tube 53cm). I got it off ebay not long ago. And having insufficient fund to build a single speed out of it. So I will let it go for $250nego.
Frame have no BB, Headset, fork....it just a bare frame (also been striped ready to be repaint to custom colours).
Pick up - Sydney.