Ducati leveraged decades of racing expertise to develop the most powerful and highest-revving single-cylinder engine in its history. Available in two states of tune, the Superquadro Mono stands ...

According to the manufacturer, Achates' opposed-piston engine also puts out about 10% less carbon dioxide emissions than a traditional four-stroke engine.

659 cc vertical single-cylinder engine Bore x stroke 116 x 62.4 mm Compression ratio 13.1:1 Maximum power 57 kW (77.5 hp) at 9,750 rpm – 84.5 hp at 9,500 rpm with Termignoni racing exhaust ...