GT 380

1977 Suzuki GT 380 Technical Analysis & Specification Breakdown

At the heart of the 1977 Suzuki GT 380 classic motorcycle, Suzuki features a 371 cc (22.6 cu in) air-cooled in-line three, two-stroke configuration. In factory specification, peak output is rated at 27 HP (19.7 kW) at 6,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 72.8 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 GT 380 measures 190 kg (419 lbs) wet (curb), translating to a power-to-weight ratio of 0.14 HP/kg (7.04 kg per horsepower). The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 145 km/h (90 mph).

Within MotoLibrary's Suzuki archive, this model family spans 7 indexed model years from 1973 to 1979, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.