1973 | GA50

Popular and compact sporty model


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