What category is the 1990 Kawasaki ZR 550B Zephyr?

The 1990 Kawasaki ZR 550B Zephyr has a Category of Naked bike.

What is the engine size of the 1990 Kawasaki ZR 550B Zephyr?

The 1990 Kawasaki ZR 550B Zephyr has a Capacity: of 553.00 ccm (33.74 cubic inches).

What type of engine does the 1990 Kawasaki ZR 550B Zephyr have?

The 1990 Kawasaki ZR 550B Zephyr has a Engine type of In-line four.

What is the engine power of the 1990 Kawasaki ZR 550B Zephyr?

The 1990 Kawasaki ZR 550B Zephyr has a Power of 50.00.

Is the 1990 Kawasaki ZR 550B Zephyr air cooled or liquid cooled?

The 1990 Kawasaki ZR 550B Zephyr has a Cooling system of Oil & air.

How many gears does the 1990 Kawasaki ZR 550B Zephyr have?

The 1990 Kawasaki ZR 550B Zephyr has a Gearbox of 6-speed.

How much does the 1990 Kawasaki ZR 550B Zephyr weigh?

The 1990 Kawasaki ZR 550B Zephyr has a Weight incl. oil, gas, etc of 206.0 kg (454.2 pounds).

What is the top speed of the 1990 Kawasaki ZR 550B Zephyr?

The 1990 Kawasaki ZR 550B Zephyr has a Top speed of 220.5 km/h (137.0 mph).

Kawasaki ZR 550B Zephyr - 1990 Specifications and Reviews

Name: 1990 Kawasaki ZR 550B Zephyr
Brand: Kawasaki

The 1990 Kawasaki ZR 550B Zephyr is a lightweight naked bike ideal for new riders and commuters seeking accessible performance. Its 553cc four-cylinder engine delivers smooth, manageable power with excellent fuel efficiency. Known for its nimble handling and retro styling, it remains a popular entry-level sportbike that balances practicality with engaging ride dynamics.

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1990

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General information
Category	Naked bike
Year	1990
Model	Kawasaki ZR 550B Zephyr

Engine and Transmission Specifications
Clutch	Wet Plate
Transmission typefinal drive	Chain
Gearbox	6-speed
Cooling system	Oil & air
Lubrication system	Wet Sump
Starter	Electric
Fuel control	DOHC
Valves per cylinder	2
Fuel system	Carburettor
Bore x stroke	58.0 x 52.4 mm (2.3 x 2.1 inches)
Compression	9.5:1
Max RPM	10200
Power	50.00
Stroke	4
Engine type	In-line four
Capacity:	553.00 ccm (33.74 cubic inches)
Physical measures and capacities
Weight incl. oil, gas, etc	206.0 kg (454.2 pounds)

Kawasaki ZR 550B Zephyr dimensions and frame
Exhaust system	Single Stainless Steel pipe
Speed and acceleration
1/4 mile (0.4 km)	13.790 seconds
Top speed	220.5 km/h (137.0 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel consumption pr. 10 km (6.2 miles)	4.12 litres (1.09 gallons)
Fuel capacity	14.98 litres (3.96 gallons)

Performance Profile & Rider Fit

50 hp

Peak Power

5.2s

0-60 mph

137 mph

Top Speed

Best For

Track40%

City78%

Cornering70%

Daily Riding75%

Touring42%

Passenger45%

Rider Profile

Best For	Suits newer to intermediate riders thanks to its modest power delivery and predictable, classic in-line four character.
Purpose	A retro-styled naked bike built for enjoyable everyday street riding, commuting, and casual weekend rides rather than outright performance.
Rider Fit	Its moderate weight and upright, neutral riding position make it manageable for riders of average size and strength, including those with shorter inseams.
Character	Offers a smooth, revvy air-cooled four-cylinder feel with classic UJM styling and dependable, unintimidating manners.
Not Ideal For	Not suited for riders seeking high top-end power, long-distance touring comfort, or any off-road capability.

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