or a Honda RC51 or older VFR. They had gear driven cams... and yes they make a noise.I think this is why Ducati used bevel drive so long ago... Porsche used bevel drive too for some engines. The Porsche engines had a slip joint in the shaft between the two bevel gear sets to allow for expansion of the air cooled engine. I don' t know about old Ducati's though. Maybe you should just buy an old bevel drive Ducati?