What category is the 1988 Kawasaki GPZ 550 (reduced Effect)?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Category of Unspecified category.

What is the engine size of the 1988 Kawasaki GPZ 550 (reduced Effect)?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Capacity: of 553.00 ccm (33.74 cubic inches).

What type of engine does the 1988 Kawasaki GPZ 550 (reduced Effect) have?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Engine type of In-line four, four-stroke.

What is the engine power of the 1988 Kawasaki GPZ 550 (reduced Effect)?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Power of 50.00.

What is the top speed of the 1988 Kawasaki GPZ 550 (reduced Effect)?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Top speed of 176.0 km/h (109.4 mph).

Is the 1988 Kawasaki GPZ 550 (reduced Effect) air cooled or liquid cooled?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Cooling system of Air.

How many gears does the 1988 Kawasaki GPZ 550 (reduced Effect) have?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Gearbox of 6-speed.

How much does the 1988 Kawasaki GPZ 550 (reduced Effect) weigh?

The 1988 Kawasaki GPZ 550 (reduced Effect) has a Weight incl. oil, gas, etc of 209.0 kg (460.8 pounds).

Kawasaki GPZ 550 (reduced Effect) - 1988 Specifications and Reviews

Name: 1988 Kawasaki GPZ 550 (reduced Effect)
Brand: Kawasaki

The 1988 Kawasaki GPZ 550 is an accessible middleweight sportbike designed for novice and intermediate riders seeking genuine performance without overwhelming power. Its 553cc inline-four engine delivers manageable 50 horsepower while maintaining the engaging character that made the GPZ series legendary. Known for responsive handling and reliable engineering, it remains an ideal entry-level sportbike.

⇄ Compare against another bike 📅 All Years

1988

Add/Upload pictures for this motorcycle

General information
Category	Unspecified category
Year	1988
Model	Kawasaki GPZ 550 (reduced effect)
Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	58.0 x 52.4 mm (2.3 x 2.1 inches)
Compression	10.0:1
Top speed	176.0 km/h (109.4 mph)
Power	50.00
Engine type	In-line four, four-stroke
Capacity:	553.00 ccm (33.74 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Dual disc
Rear tyre dimensions	120/80-18
Front tyre dimensions	100/90-18

Physical measures and capacities
Fuel capacity	18.00 litres (4.76 gallons)
Weight incl. oil, gas, etc	209.0 kg (460.8 pounds)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

50 hp

Peak Power

5.8s

0-60 mph

109.4 mph

Top Speed

Best For

Track35%

City60%

Cornering55%

Daily Riding60%

Touring45%

Passenger45%

Rider Profile

Best For	This is a restricted, detuned version of the GPZ550 (note the 'reduced effect' designation and lower-than-stock power figure of 50hp), likely built to meet learner or licensing power limits, so it suits newer riders stepping up from smaller bikes.
Purpose	It works best as an approachable, everyday standard-style bike for commuting and learning the ropes of a four-cylinder machine rather than for outright performance.
Rider Fit	The moderate 209kg weight and 18-inch wheels make it manageable for riders of average height and strength, with an upright-ish stance typical of early UJM-style sportbikes.
Character	It has a smooth, air-cooled inline-four character with a soft, linear power delivery rather than an aggressive top-end rush, reflecting its restricted output.
Not Ideal For	It is not the right choice for riders seeking genuine sport-bike performance, high top speed, or off-road capability.

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