Aprilia is an Italian motorcycle company, one of the seven marques owned by Piaggio, the world's fourth largest motorcycle manufacturer.

Aprilia started as a scooter manufacturer, but has more recently come to be known for its race-winning sportbikes. It is also known for its flagship 1,000 cc V-twin Superbike, the RSV Mille and latest V4 based RSV 4.

Source: Wikipedia