SST 250

1981 Cagiva SST 250 Technical Analysis & Specification Breakdown

Built around Cagiva's sport motorcycle platform, the 1981 Cagiva SST 250 pairs a 243 cc (14.8 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 10 HP (7.3 kW) at 5,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 41.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the SST 250 measures 143 kg (315 lbs) wet (curb), translating to a power-to-weight ratio of 0.07 HP/kg (14.3 kg per horsepower). The 10.5-liter (2.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 110 km/h (68 mph).

Within MotoLibrary's Cagiva archive, this model family spans 5 indexed model years from 1979 to 1983, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.