The Kawasaki Z1-B motorcycle specifications include a 903 cc (55.10 cu in) engine, a 5-speed gearbox, and a listed weight of 233 kg (513.7 lb).
Key specifications
How the Kawasaki Z1-B 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 71st percentile across Kawasaki models.
About 18% larger than the Kawasaki database average. Around the 67th 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.
903 cc — larger displacement than about 71% of Kawasaki models.
18 L — larger than about 67% of Kawasaki fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Bore/stroke ratio | 1.00:1 (Square) |
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Model information
| Year released | 1976 |
|---|---|
| Category | Naked bike |
Engine specifications
| Engine type | In-line four, four-stroke |
|---|---|
| Displacement | 903 cc (55.10 cu in) |
| Torque | 71.9 Nm (7.3 kgf-m or 53.0 ft.lbs) @ 7,000 rpm |
| Bore × stroke | 66.0 x 66 mm (2.6 x 2.6 inches) |
| Compression ratio | 8.5:1 |
| Valves per cylinder | 2 |
| Cooling system | Air |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
Dimensions and weight
| Dry weight | 233 kg (513.7 lb) |
|---|---|
| Wheelbase | 1,490 mm (58.7 inches) |
Fuel and emissions
| Fuel capacity | 18.00 L (4.76 US gal) |
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Performance
| Power/weight ratio | 0.3519 hp/kg |
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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.