The APRILIA Tuono is a naked bike (street fighter) motorcycle manufactured by Italian motorcycle manufacturer Aprilia. It was first introduced in 2002 as a more street-oriented version of the Aprilia RSV Mille. The Tuono is powered by a 997cc V-twin engine, making the Tuono one of the most powerful naked bikes on the market. The Tuono has an upright riding position and is known for its aggressive styling, performance, and excellent handling. The current Tuono has several iterations, including the Tuono V4 Factory, Tuono V4 1100 Factory, and Tuono V4 1100 RR.