Naked Motorcycles
1987Kawasaki GPZ 305 Belt Drive
19 fields on record
The 1987 Kawasaki GPZ 305 Belt Drive is an accessible sport-touring middleweight ideal for novice riders seeking lightweight agility with modest performance. Its 306cc air-cooled twin delivers 27 horsepower through smooth belt drive transmission, making it reliable and easy to maintain while offering genuine sport character and a respectable 140 km/h top speed.
- Capacity
- 306.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 164.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 27.0 HP (19.9 kW) @ 10000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as an easygoing all-round commuter and learner bike rather than a performance or adventure machine.
- Built for
- A modest, low-maintenance twin with a low-stress delivery, softened further by the low-noise, low-maintenance belt final drive.
- Not ideal for
- This is not the bike for riders seeking high-speed thrills, serious touring range, or any off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 306.0 ccm
- Power
- 27.0 HP (19.9 kW) @ 10000 RPM
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.1646 HP/kg (wet)
- Bore x stroke
- 61.0 x 52.4 mm
- Compression
- 9.7:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Belt
Performance
- Top speed
- 140.0 km/h (87.0 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Expanding brake
- Front tyre
- 90/90-18
- Rear tyre
- 110/80-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1984 | 1986 | 1987 | 1989 | 1990 |
|---|---|---|---|---|---|
| Capacity | 306 cc | 306 cc | 306 cc | 306 cc | 306 cc |
| Fuel capacity | 16.5 L | 16.5 L | 16.5 L | 16.5 L | 16.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki GPZ 305 Belt Drive?
The 1987 Kawasaki GPZ 305 Belt Drive has a Capacity of 306.0 ccm (18.67 cubic inches).
What engine power does the Kawasaki GPZ 305 Belt Drive have?
The 1987 Kawasaki GPZ 305 Belt Drive has a Power of 27.0 HP (19.9 kW) @ 10000 RPM.
How many gears does the Kawasaki GPZ 305 Belt Drive have?
The 1987 Kawasaki GPZ 305 Belt Drive has a Gearbox of 6-speed.
How much does the Kawasaki GPZ 305 Belt Drive weigh?
The 1987 Kawasaki GPZ 305 Belt Drive has a Wet weight of 164.0 kg (361.6 pounds).
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