Kawasaki GPZ 900 R (reduced Effect) - 1985 Specifications and Reviews
The 1985 Kawasaki GPZ 900 R (reduced effect) is a sport-touring motorcycle designed for riders seeking a blend of performance and practicality. Powered by a 908cc liquid-cooled four-stroke inline-four engine producing 100 horsepower, it delivers genuine sportiness with touring capability. Best known as an accessible alternative to the unrestricted GPZ 900 R, this model remains iconic for combining thrilling performance with everyday usability.
General information | |
| Category | Sport touring |
| Year | 1985 |
| Model | Kawasaki GPZ 900 R (reduced effect) |
| | |
Engine and Transmission Specifications | |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Fuel control | DOHC |
| Valves per cylinder | 4 |
| Bore x stroke | 72.5 x 55.0 mm (2.9 x 2.2 inches) |
| Compression | 11.0:1 |
| Top speed | 240.0 km/h (149.1 mph) |
| Power | 100.00 |
| Engine type | In-line four, four-stroke |
| Capacity: | 908.00 ccm (55.41 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc |
| Front brakes | Dual disc |
| Rear tyre dimensions | 130/80-18 |
| Front tyre dimensions | 120/80-16 |
Physical measures and capacities | |
| Fuel capacity | 22.00 litres (5.81 gallons) |
| Weight incl. oil, gas, etc | 257.0 kg (566.6 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
100 hp
Peak Power
3.6s
0-60 mph
149.1 mph
Top Speed
Best For
Track55%
City55%
Cornering65%
Daily Riding65%
Touring78%
Passenger70%
Rider Profile
| Best For | Best suited to riders with at least a couple of years of experience who are comfortable managing a torquey, liquid-cooled four with real weight and a restricted (de-tuned) but still meaningful power output. |
| Purpose | Designed as a sport tourer, it aims to blend confident highway speed and stability with enough comfort for longer rides rather than outright track performance. |
| Rider Fit | At 257 kg with a fairly long wheelbase and a reach to the bars typical of early-90s sport tourers, it suits riders of average-to-tall height and reasonable strength for low-speed maneuvering. |
| Character | A smooth, torque-rich in-line four wrapped in a stable chassis gives this bike a composed, confidence-inspiring, all-round character rather than a sharp or aggressive one. |
| Not Ideal For | Not ideal for new riders seeking a light, nimble first bike or for anyone wanting a dedicated off-road or track-focused machine. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Add a Comment
Related Motorcycle Specifications
More Kawasaki Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501






































Please Login or Register if you would like to leave a comment.