|Manufacturer||Enrico Bernardi (inventor)|
|Engine||122.5 cc single-cylinder, water cooled, gasoline engine with cast iron cylinder|
|Bore / stroke||44 mm x 80.5 mm|
|Power||0.024 bhp at 200 rpm|
|Frame type||Wooden tricycle|
|Fuel capacity||0.2 l (0.044 imp gal; 0.053 US gal)|
The Motrice Pia was an early three-wheeled vehicle, introduced by Italian Enrico Bernardi, and sometimes credited as the first motorcycle. The exact year of introduction depends on which one of the following milestones one considers: the demonstration of a gasoline engine in 1882–1884 (first used to power a sewing machine), the application of the engine to a child's tricycle in 1884, the application of this engine to a motorized tricycle (or low cart) in 1893, or the mounting of the motor behind a bicycle on a one-wheel trailer via chain drive creating a "motorcycle" in 1894.
Specifications in the box accompanying the article are from Museo Nicolis and refer to the 1884 tricycle.
- E.F., "Bernardi, Enrico", Encyclopedia Italiana (in Italian)
- "Review of Heinlich and Shube's Traction Drives", History of Automobiles and Early Transmissions
- Terry Welshans (August 2013), A Brief History of Aircraft Carburetors and Fuel Systems, Aircraft Engine Historical Society
- "Motrice pia" 1882, Verona: Museo Nicolis
- Italian automotive chronology (PDF), Politecnico di Torino, 2004