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Classic · 1973

GT 380

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MotoLibrary Score
46 /100 Balanced
Power
32 HP
Top Speed
168 km/h
Engine
371 ccm

1973 Suzuki GT 380 Technical Analysis & Specification Breakdown

Positioned in Suzuki's classic motorcycle lineup, the 1973 Suzuki GT 380 relies on a 371 cc (22.6 cu in) air-cooled in-line three, two-stroke powerplant. In factory specification, peak output is rated at 32 HP (23.4 kW) at 7,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 86.3 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 GT 380 measures 190 kg (419 lbs) wet (curb), translating to a power-to-weight ratio of 0.17 HP/kg (5.94 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 168 km/h (104 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.

Specific Output
86.3 HP/L
Power-to-Weight
0.17 HP/kg (5.94 kg/HP)
Engine
Displacement 371.0 ccm (22.64 cubic inches)
Engine Type In-line three, two-stroke
Engine Details In-line three, two-stroke
Power 32.0 HP (23.4 kW)) @ 7500 RPM
Compression 6.7:1
Bore x Stroke 54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel Control Port control
Cooling Air
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Performance
Top Speed 168.0 km/h (104.4 mph)
Wheels & Brakes
Front Tyre 3.00-19
Rear Tyre 3.50-18
Front Brakes Single disc
Rear Brakes Expanding brake
Dimensions & Weight
Weight incl. 190.0 kg (418.9 pounds)
Fuel Capacity 15.00 litres (3.96 US gallons)
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Transmission
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Beginner
A2 license compatible, manageable power.
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