The Kawasaki GPZ900 R (reduced effect) motorcycle specifications include a 908 cc (55.41 cu in) engine, a 6-speed gearbox, and a listed weight of 257 kg (566.6 lb).
Key specifications
The 1984 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Kawasaki GPZ900 R (reduced effect) compares
This compares the motorcycle with all Kawasaki models in this specifications database. The blue marker is this model and the grey line is the Kawasaki database average.
About 32% higher than the Kawasaki database average. Around the 72nd percentile across Kawasaki models.
About 24% heavier than the Kawasaki database average. Around the 78th percentile across Kawasaki models.
About 44% larger than the Kawasaki database average. Around the 96th percentile across Kawasaki models.
Kawasaki database percentile rankings
Percentiles show where this motorcycle sits across the Kawasaki specifications database. They are descriptive database rankings, not performance ratings.
908 cc — larger displacement than about 72% of Kawasaki models.
257 kg — heavier than about 78% of Kawasaki models, or lighter than about 22%.
22 L — larger than about 96% of Kawasaki fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 120/80-16 |
|---|---|
| Rear tire size | 130/80-18 |
| Front tire width | 120 mm |
| Front tire aspect ratio | 80% |
| Front rim diameter | 16 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 80% |
| Rear rim diameter | 18 in |
| Bore/stroke ratio | 1.32:1 (Oversquare) |
Engine specifications
| Engine type | In-line four, four-stroke |
|---|---|
| Displacement | 908 cc (55.41 cu in) |
| Bore × stroke | 72.5 x 55 mm (2.9 x 2.2 inches) |
| Compression ratio | 11.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Dual disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 120/80-16 |
| Rear tire | 130/80-18 |
Dimensions and weight
| Wet weight | 257 kg (566.6 lb) |
|---|
Fuel and emissions
| Fuel capacity | 22.00 L (5.81 US gal) |
|---|
Performance
| Top speed | 240.0 km/h (149.1 mph) |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Kawasaki models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Kawasaki information before relying on them. Visit the official Kawasaki website.