Across 7 covered model years from 1984 to 1990, the Kawasaki GPZ 305 Belt Drive motorcycle has supplied wet/running weights ranging from 361.6 lb (164 kg) and dry weights ranging from 324.1 lb (147 kg), depending on model year.
Kawasaki GPZ 305 Belt Drive weight overview
The bike falls into a normal middleweight range. At road speed the mass is usually less obvious; parking, slopes and walking-speed maneuvers are where you notice it most.
Middleweight Motorcycle
How heavy is the Kawasaki GPZ 305 Belt Drive?
wet weight
Using a model-level wet weight comparison, the Kawasaki GPZ 305 Belt Drive is lighter than about 72.5% of 20 Kawasaki allround models 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 GPZ 305 Belt Drive weight & related specs
| Model years covered | 1984, 1985, 1986, 1987, 1988, 1989, 1990 |
|---|---|
| Wet / running weight | 361.6 lb (164 kg) |
| Dry weight | 324.1 lb (147 kg) |
| Engine displacement | 306 cc |
| Power | 34 hp |
| Torque | 18.8 lb-ft (25.5 Nm) |
| Fuel capacity | 4.36 US gal (16.5 L) |
| Full-tank fuel weight (estimated) | 27.1 lb (12.3 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 9.4 hp / 100 lb |
|---|---|
| Pounds per horsepower | 10.63 lb / hp |
| Torque per 100 lb | 5.2 lb-ft / 100 lb |
| Displacement per pound | 0.85 cc / lb |
| Weight per 100 cc | 118.2 lb / 100 cc |
| Fuel weight as % of bike weight | 7.5% |
| Weight with full tank | 351.2 lb (159.3 kg) |
What the weight numbers tell you
Kawasaki GPZ 305 Belt Drive weight FAQ
What is the Kawasaki GPZ 305 Belt Drive dry and wet weight?
Across the covered 1984-1990 years, listed wet/running weight is 361.6 lb (164 kg) and listed dry weight is 324.1 lb (147 kg). Check the year-change section because the exact figure can vary by model year.
Is the Kawasaki GPZ 305 Belt Drive lighter or heavier than other Kawasaki allround models?
It is comparatively light for this Kawasaki category. The model lands near the 28th percentile for weight in the compatible dataset.
Which Kawasaki GPZ 305 Belt Drive years have different weight specs?
No clear weight change appears in the usable model-year data. Other specifications may still differ by year.
How much does a full tank add to the Kawasaki GPZ 305 Belt Drive?
Based on the supplied 4.36 US gal (16.5 L) tank capacity, the gasoline itself weighs about 27.1 lb (12.3 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Kawasaki GPZ 305 Belt Drive and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 541.6 lb (245.6 kg) before riding gear, luggage or a passenger.
What is the Kawasaki GPZ 305 Belt Drive power-to-weight ratio?
Available model-year data produces 9.4 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 42nd percentile within the compatible Kawasaki allround power-to-weight comparison.
What does the Kawasaki GPZ 305 Belt Drive weigh with a full tank?
Based on the available dry-weight and tank-capacity data, a full-tank estimate is 351.2 lb (159.3 kg). Oil, coolant and market-specific equipment can still make actual ready-to-ride weight different.
How much torque does the Kawasaki GPZ 305 Belt Drive have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 5.2 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Kawasaki GPZ 305 Belt Drive displacement per pound?
The available figures work out to 0.85 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
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.