This 400 model was brought to the market as the second model succeeding the 750. It was designed in a swinging image and mounted a DOHC 180-degrees parallel twin engine.
It was a super twin model which focused on the practical speed range. It was a simple model equipped with a steel square pipe frame and a simple disc/drum brake.
The GSX-F which had a smooth bodyline was painted in 2-tone color. It was equipped with ANDF (Anti Nose Dive Forks) on both sides (it used to be on only one side till then).
The basic parts, like the engine or the body, was based on APE, yet it had new front & rear aluminum wheels, disc brakes, and motard-taste exterior parts.
While keeping the traditional style that carries the aroma of the 60s, it also had the latest technology such as the DOHC engine that adopted the RFVC system.
This model inherits the DNA of the GP racer, RC211V. It follows its chassis balance style, such as its Unit Pro-Link suspension or its center raised exhaust.
Subsequent to Type I and II, Type C was brought to the market for business use. It had a rear carrier and a center stand. The carrier had a rubber mat to protect the luggage.
It was a motor scooter of the largest engine capacity for the Japanese market. It mounted a 638cc DOHC 4-valve head water-cooled 2-cylinder engine that had a Φ 32 fuel injection.
A touring sport model different from the racer replica models. It brought out 59 horsepower, which was the maximum level of its class. It recorded a sales that ranked among the top models.
It was the cowl-less model of the GPz400 which had been added in January 1984. It adopted the plated exhaust and the integrated meter same as the Z400GP. The color had been changed.