354 Sport II

1984 Benelli 354 Sport II Technical Analysis & Specification Breakdown

Engineered by Benelli for the sport motorcycle segment, the 1984 Benelli 354 Sport II relies on a 345 cc (21.1 cu in) air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 27 HP (19.7 kW) at 9,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 78.3 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 354 Sport II measures 181 kg (399 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.7 kg per horsepower). The 15.5-liter (4.1 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 153 km/h (95 mph).

Within MotoLibrary's Benelli archive, this model family spans 2 indexed model years from 1984 to 1985, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.