What category is the 1990 Kawasaki GPX 600 R (reduced Effect)?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Category of Sport touring.

What is the engine size of the 1990 Kawasaki GPX 600 R (reduced Effect)?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Capacity: of 592.00 ccm (36.12 cubic inches).

What type of engine does the 1990 Kawasaki GPX 600 R (reduced Effect) have?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Engine type of In-line four, four-stroke.

What is the engine power of the 1990 Kawasaki GPX 600 R (reduced Effect)?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Power of 50.00.

What is the top speed of the 1990 Kawasaki GPX 600 R (reduced Effect)?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Top speed of 183.0 km/h (113.7 mph).

Is the 1990 Kawasaki GPX 600 R (reduced Effect) air cooled or liquid cooled?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Cooling system of Liquid.

How many gears does the 1990 Kawasaki GPX 600 R (reduced Effect) have?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Gearbox of 6-speed.

How much does the 1990 Kawasaki GPX 600 R (reduced Effect) weigh?

The 1990 Kawasaki GPX 600 R (reduced Effect) has a Weight incl. oil, gas, etc of 206.0 kg (454.2 pounds).

Kawasaki GPX 600 R (reduced Effect) - 1990 Specifications and Reviews

Name: 1990 Kawasaki GPX 600 R (reduced Effect)
Brand: Kawasaki

The 1990 Kawasaki GPX 600 R is an accessible sport-touring middleweight ideal for novice and intermediate riders seeking a nimble, reliable machine. Its liquid-cooled 592cc inline-four delivers smooth power for both commuting and weekend riding. Known for balanced handling, reasonable fuel economy, and forgiving dynamics, it remains a practical entry point into performance motorcycling.

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1990

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General information
Category	Sport touring
Year	1990
Model	Kawasaki GPX 600 R (reduced effect)

Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Liquid
Fuel control	DOHC
Valves per cylinder	4
Bore x stroke	60.0 x 52.4 mm (2.4 x 2.1 inches)
Compression	11.7:1
Top speed	183.0 km/h (113.7 mph)
Power	50.00
Engine type	In-line four, four-stroke
Capacity:	592.00 ccm (36.12 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Dual disc
Rear tyre dimensions	130/90-16
Front tyre dimensions	110/80-16
Physical measures and capacities
Fuel capacity	19.50 litres (5.15 gallons)
Weight incl. oil, gas, etc	206.0 kg (454.2 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

50 hp

Peak Power

6.5s

0-60 mph

113.7 mph

Top Speed

Best For

Track35%

City55%

Cornering55%

Daily Riding58%

Touring55%

Passenger45%

Rider Profile

Best For	This is a restricted 'reduced effect' variant of the GPX600R, likely detuned for novice or licence-restricted riders, so it suits newer riders more than experienced sportbike veterans.
Purpose	Built as an accessible sport tourer, it blends inline-four smoothness with modest power for learning proper cornering and throttle control without overwhelming performance.
Rider Fit	Its moderate weight and period sport-touring ergonomics make it manageable for riders of average size and fitness, without demanding aggressive off-road strength or extreme reach.
Character	It has the eager, high-revving personality typical of a small inline-four, but tamed to feel forgiving and predictable rather than thrilling.
Not Ideal For	It is not suited for riders seeking genuine high-speed sport performance, serious touring range, or any off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.