800 S America

1978 MV Agusta 800 S America Technical Analysis & Specification Breakdown

Built around MV Agusta's classic motorcycle platform, the 1978 MV Agusta 800 S America utilizes a 789 cc (48.1 cu in) air-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 75 HP (54.7 kW) at 8,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 95.1 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the 800 S America measures 260 kg (573 lbs) wet (curb), translating to a power-to-weight ratio of 0.29 HP/kg (3.47 kg per horsepower). The 24-liter (6.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 216 km/h (134 mph).

Within MotoLibrary's MV Agusta archive, this model family spans 3 indexed model years from 1977 to 1979, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.