An Italian designer claims to be producing a small number of motorcycles with inverted three-cylinder engines.
Daniele “Titus” Sabatini is the owner of Nembo Motociclette in Rome, and his 1,814 cc upside-down engine, the Super 32 rovescio, is air cooled, uses two valves per cylinder, and is said to produce more power than expected.
Sabatini says he dislikes seeing motorcycle engines hidden by plastic fairings and large frame rails, “so I’ve thought that a good way to get a well exposed and updated air-cooled engine in a contemporary naked sport bike was just to invert it,” he says in the Kneeslider.
By inverting the engine he gets the crankcase to act as a chassis component and leaves the cylinders unstressed and out in the airflow.
Sabatini promised that a couple of models would be complete by Christmas and would weigh approximately 150 kg. Power, depending on the engine’s displacement, will be 160 hp or more. Sabatini says he can build them in 1814 cc, 1925 cc, and 2097 cc variations, and the largest of them will produce 250 hp, he claims.
He recently showed photos of a built-up motorcycle, and it looks like he’s making good on his promise.