Kawasaki GPX 400 (GPX400R)

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Kawasaki GPX400R

The Kawasaki GPX400R sports bike model appeared in 1987 as the successor to the Kawasaki GPZ400R. However, despite this, both models were produced in parallel until 1990, until they were replaced by Kawasaki ZZ-R400 and Kawasaki ZXR400.

Unlike the GPZ400, the new GPX400 model received a steel frame (instead of an aluminum one), which was called FAST and was close in performance to an aluminum one. Also the engine from GPZ400 has been significantly redesigned and lightened and installed in the GPX400. By the way, in 1989 the model GPZ400 gets this engine, as well as the chassis from the GPX400. The braking system has also undergone changes - instead of 1-piston calipers, the model receives more efficient 2-piston calipers. The AVDS anti-peel system is replaced by an electric ESCS (with a solenoid valve). Instead of conventional capacitor ignition (CDI), a digital transistor was installed.

1989 was the last year of production for the Kawasaki GPX400R, after which it was discontinued. Thus, the model existed for about 3 years, which made it a rather rare model, even in Japan. On the Russian market, the Kawasaki GPX 400 is practically not found.


Kawasaki GPX400R
Kawasaki GPX400R
Kawasaki GPX400R


Specifications Kawasaki GPX400R:

ModelKawasaki GPX400R
Motorcycle typesports
Release year1987-1989
Framesteel (FAST)
Engine type4-cylinder, 4-stroke, in-line
Working volume398 cm³
Bore / Stroke56.0 x 40.4 mm
Compression ratio11.4: 1
Number of valves per cylinderDOHC, 4 valves per cylinder
Fuel supply systemCarburetor, 4x Keihin CVK30
Ignition typeDigital transistor
Maximum power59.0 h.p. (43.4 kW) at 12000 rpm
Maximum torque35.0 Nm (3.6 kg * m) at 10,500 rpm
Drive typechain
Front tire size100 / 90-16 54H
Rear tire size130 / 90-16 67H
Front brakes2 discs, 2-piston calipers
Rear brakes1 disc, 2-piston caliper
Front suspension38mm Air Fork with Anti-bite ESCS (Adjustable), 140mm Travel
Rear suspensionpendulum Uni-Trak with pneumatic monoshock (adjustable preload and rebound damping), stroke - 130 mm
Motorcycle length2105 mm
Motorcycle width690 mm
Motorcycle height1155 mm
Wheelbase1415 mm
Saddle height755 mm
Minimum ground clearance115 mm
Acceleration to 100 km / h4.5 sec
Maximum speed205 km / h
Fuel tank capacity18.0 l
Motorcycle weight (dry)174 kg

Fuel consumption

The minimum fuel consumption for the Kawasaki GPX 400 can reach 4-5 liters per 100 kilometers, the maximum is 10-12 liters. The exact value depends on the riding style and the condition of the motorcycle.