Kawasaki GPZ 550 (reduced Effect) - 1987 Specifications and Reviews
The 1987 Kawasaki GPZ 550 is a lightweight sport-touring middleweight ideal for novice and intermediate riders seeking accessible performance. Its air-cooled inline-four engine delivers smooth, manageable power with genuine sportiness, while the forgiving chassis and comfortable ergonomics make it equally suited to commuting and weekend rides. Best known for reliable, accessible fun and exceptional value.
General information | |
| Category | Sport touring |
| Year | 1987 |
| 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.
Rider Reviews
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