Across the 1981, 1982 and 1983 model years, the Kawasaki Z 1100 ST motorcycle has a listed wet/running weight of 597.5 lb (271 kg).
Kawasaki Z 1100 ST weight overview
This is a very heavy motorcycle. Good footing, sensible parking direction and avoiding awkward slopes make a real difference when handling it at walking speed.
Very Heavy Motorcycle
How heavy is the Kawasaki Z 1100 ST?
wet weight
Using a model-level wet weight comparison, the Kawasaki Z 1100 ST is heavier than about 98.3% of 60 Kawasaki naked bikes with compatible weight data.
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 1100 ST weight & related specs
| Model years covered | 1981, 1982, 1983 |
|---|---|
| Wet / running weight | 597.5 lb (271 kg) |
| Engine displacement | 1,089 cc |
| Power | 97 hp |
| Fuel capacity | 4.76 US gal (18 L) to 5.55 US gal (21 L) |
| Full-tank fuel weight (estimated) | 29.6 lb (13.4 kg) to 34.5 lb (15.6 kg) |
Weight changes by model year
The 1981 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Horsepower per 100 lb | 16.24 hp / 100 lb |
|---|---|
| Pounds per horsepower | 6.16 lb / hp |
| Displacement per pound | 1.82 cc / lb |
| Weight per 100 cc | 54.9 lb / 100 cc |
| Fuel weight as % of bike weight | 4.9% to 5.8% |
What the weight numbers tell you
Kawasaki Z 1100 ST weight FAQ
How much does the Kawasaki Z 1100 ST weigh?
The available wet/running figure is 597.5 lb (271 kg). This is more representative of the motorcycle you actually push, park and ride than a dry-only specification.
How does the Kawasaki Z 1100 ST weight compare with similar Kawasakis?
It is on the heavier side. Its representative wet weight is around the 98th percentile among 60 compatible Kawasaki naked bikes.
Are all Kawasaki Z 1100 ST model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 1981-1983 years covered here.
What does a full tank of gas weigh on the Kawasaki Z 1100 ST?
A full tank works out to about 29.6 lb (13.4 kg) to 34.5 lb (15.6 kg) from the listed 4.76 US gal (18 L) to 5.55 US gal (21 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Kawasaki Z 1100 ST weigh with a 180 lb rider?
The approximate combined total is 777.5 lb (352.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Kawasaki Z 1100 ST strong for its weight?
The calculated range is 16.24 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 54th percentile within the compatible Kawasaki naked bike power-to-weight comparison.
How much of the Kawasaki Z 1100 ST total weight comes from fuel?
Fuel accounts for roughly 4.9% to 5.8% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
What is the Kawasaki Z 1100 ST engine-size-to-weight ratio?
The model has about 1.82 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
How far is the Kawasaki Z 1100 ST from the median Kawasaki naked bike weight?
The representative wet weight is about 135.6 lb (61.5 kg) heavier than the median Kawasaki naked bike weight of 461.9 lb (209.5 kg) in this dataset.
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.