| MODEL | KAWASAKI GPZ 600R NINJA 1991 - 1992 |
| Year | 1991 - 1992 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 592 cc / 36.1 cu in |
| Bore X Stroke | 60 x 52.4 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 54.7 kW / 75 hp @ 10500 rpm |
| Max Torque | 5.1 kgf-m / 36.8 lb-ft @ 9000 rpm |
| Ignition | Digital |
| Induction | 4x 32 mm Keihin CVK carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 37 mm air-assisted forks, AVDS adjustable anti-dive, 140 mm / 5.5 in wheel travel |
| Rear Suspension | Single air-assisted shock, adjustable for rebound damping, 130 mm / 5.1 in wheel travel |
| Front Brakes | 2x discs, 1-piston calipers |
| Rear Brakes | Single disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 195 kg / 430 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/90-16 |
| Rear Tyre | 130/90-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.7 US gal |
| Fuel Consumption | 47.8 mpg (average) |
| Top Speed | 205 km/h / 127.5 mph |
Listed here as a 1991-92 GPZ/GPX 600R entry, but the review on the page is of the ZX-6 (ZX600D1) from 1990. The ZX-6 was praised for a strong, wide powerband and a high redline, and criticised for abrupt throttle response, soft fork springs and a rebound-only rear shock.
