For the 1975 model year, the Kawasaki Z 900 motorcycle has a supplied wet/running weight of 564.4 lb (256 kg) and a dry weight of 507.1 lb (230 kg).
Kawasaki Z 900 weight overview
This is a substantial motorcycle. The weight matters most when stopped, backing it up, parking on a slope or recovering from a lean.
Heavy Motorcycle
How heavy is the Kawasaki Z 900?
wet weight
Using a model-level wet weight comparison, the Kawasaki Z 900 is heavier than about 78.1% of 32 Kawasaki classic motorcycles with compatible weight data.
Dry vs ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Kawasaki Z 900 weight & related specs
| Model years covered | 1975 |
|---|---|
| Wet / running weight | 564.4 lb (256 kg) |
| Dry weight | 507.1 lb (230 kg) |
| Engine displacement | 903 cc |
| Power | 81 hp |
| Torque | 54.2 lb-ft (73.5 Nm) |
| Fuel capacity | 4.76 US gal (18 L) |
| Full-tank fuel weight (estimated) | 29.6 lb (13.4 kg) |
Useful weight calculations
| Horsepower per 100 lb | 14.35 hp / 100 lb |
|---|---|
| Pounds per horsepower | 6.97 lb / hp |
| Torque per 100 lb | 9.61 lb-ft / 100 lb |
| Displacement per pound | 1.6 cc / lb |
| Weight per 100 cc | 62.5 lb / 100 cc |
| Fuel weight as % of bike weight | 5.2% |
| Weight with full tank | 536.6 lb (243.4 kg) |
What the weight numbers tell you
Kawasaki Z 900 weight FAQ
How much does the Kawasaki Z 900 weigh?
For the model years covered here, wet/running weight is 564.4 lb (256 kg), while dry weight is 507.1 lb (230 kg). Do not treat dry and wet figures as interchangeable.
How does the Kawasaki Z 900 weight compare with similar Kawasakis?
It is on the heavier side. Its representative wet weight is around the 78th percentile among 32 compatible Kawasaki classic motorcycles.
What does a full tank of gas weigh on the Kawasaki Z 900?
A full tank works out to about 29.6 lb (13.4 kg) from the listed 4.76 US gal (18 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Kawasaki Z 900 weigh with a 180 lb rider?
The approximate combined total is 744.4 lb (337.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Kawasaki Z 900 strong for its weight?
The calculated range is 14.35 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 68th percentile within the compatible Kawasaki classic power-to-weight comparison.
What is the Kawasaki Z 900 full-tank weight estimate?
Filling the listed tank brings the calculated bike weight to roughly 536.6 lb (243.4 kg). This estimate is most useful when no official wet/running figure is available.
How much weight do fuel and fluids add to the Kawasaki Z 900?
Available years with both measurements show about 57.3 lb (26 kg) added between dry and ready-to-ride figures. Fuel explains part of it, while oil, coolant and specification definitions can explain the rest.
How much of the Kawasaki Z 900 total weight comes from fuel?
Fuel accounts for roughly 5.2% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
How does Kawasaki Z 900 torque compare with its weight?
Available data gives 9.61 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Kawasaki website.