SST 125

1979 Cagiva SST 125 Technical Analysis & Specification Breakdown

Positioned in Cagiva's allround motorcycle lineup, the 1979 Cagiva SST 125 utilizes a 125 cc (7.6 cu in) air-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 10 HP (7.3 kW) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 80 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 SST 125 measures 116 kg (256 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (11.6 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 104 km/h (65 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.