The models for the 2007 Piaggio BV are the BV 250 and the BV 500: named befittingly after their respective engine displacements. The four-stroke single-cylinder engine on the BV 250 displaces at 244 cubic centimeters (cc), which is rounded up to 250 cc; and the version on the BV 500 displaces at 460 cc, which is rounded up to 500 cc. The BV 250 is the less powerful of the two, with its engine producing 22 horsepower at 8,250 revolutions per minute (RPM) and 20.2 pound-feet (lb-ft) of torque at 6,500 RPM; the one on the BV 500 generates 39 horsepower at 7,250 RPM and 31.1 lb-ft of torque at 6,250 RPM. The engine’s bore and stroke is 2.8 by 2.4 inches for the BV 250 and 3.6 by 2.7 inches for the BV 500. Using a single overhead camshaft configuration, the ‘07 BV engine has four valves on its single cylinder.