500 S

1977 MV Agusta 500 S Technical Analysis & Specification Breakdown

Engineered by MV Agusta for the motorcycle segment, the 1977 MV Agusta 500 S pairs a 495 cc (30.2 cu in) air-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 43 HP (31.4 kW) at 8,200 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 86.9 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the 500 S measures 158 kg (348 lbs) wet (curb), translating to a power-to-weight ratio of 0.27 HP/kg (3.67 kg per horsepower). The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 162 km/h (101 mph).

Within MotoLibrary's MV Agusta archive, this model family spans 2 indexed model years from 1977 to 1978, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.