Question's what were Ducati thinking at that time, oh hang on a minute..........the very expensive add on catalogue.
I snapped this shot at Ray Petty Mechanica before Covid. Two Ducati’s, my 996R and an Egli framed 900ss in the distance, mixing it with two custom bikes. One with a JAP engine, the other a Moto Guzzi Le Mans. And an odd round case motor sat on the bench. Something for everyone’s taste.
I have never been there but i did bump into one of his Italian technicians a couple of years ago with his girlfriend both on Ducati Monsters in Sussex somewhere.
That looks like an early square case motor to me??? The flywheel and camshaft support blocks are certainly square case. Steve R