Non veni pacem mittere, sed gladium.
No they don't.
Looks like a 250. Owned one back in the sixties. Loved to work on it. Back then you could tell between Japanese, German, Italian, British, and American bikes by the motor engineering alone. Now they are all alike.
Well, don't keep us in suspense! How did your Ducati stack up, and how did you come to part with it?
it was engineering marvel and wonderful ride, but in the early 70's I had enough of the city and moved to the Sierra. Sold all my bikes but a couple of Royal Enfields in restoration and my personal favorite, a Matchless G15CS. Stopped riding and started building.
Ducati Desmodromic I believe; the rocker arms both opened and closed the valves, all of it powered by this vertical bevel gear-driven shaft that turned the OHC. I believe they had very light valve springs to keep the valves seated for starting mainly. The lash would have been adjustable on both the opening and closing sides of the rocker arm. Anyone???