The GA50 is a compact and sporty 50 cm³ model that can be ridden by holders of a small motorcycle license. This model was released in response to the revision of Japan’s motorcycle license system in 1972, which encouraged more people to start riding smaller class motorcycles. It pairs a high-performance 2-stroke 1-cylinder rotary disc valve engine that generates maximum horsepower of 6 PS with a pressed backbone frame. At low rpms, this powerful engine delivers gutsy torque on hills and rough roads. The GA50 also features a 5-speed manual transmission designed to maximize engine performance and aluminum Ceriani type front forks.

Dimensions and weight	Dimensions	Overall length	1,800 mm
		Overall width	750 mm
		Overall height	1,000 mm
	Wheelbase		1,190 mm
	Weight		82 kg (Dry)
Engine	Engine type		2-stroke, 1-cylinder, air-cooled
	Engine displacement		49 cm³
	Bore x stroke		41.0 mm × 37.8 mm
	Maximum power		4.4kW(6PS) / 9,000rpm
	Maximum torque		4.9N-m / 8,000rpm
Transmission			5-speed constant mesh
Front tire size			2.25-17-4PR
Rear tire size			2.50-17-4PR