Kawasaki GPz 500S / EX 500R Ninja (2003-04) vs Kawasaki ZX-R 750-J (1991)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | GPz 500S / EX 500R Ninja | ZX-R 750-J |
| Years: | 2003-04 | 1991 |
| Engine: | Four stroke, parallel twin cylinders. DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 498 cc / 30.4 cu-in | 749 cc / 45.7 cu-in |
| Bore x Stroke: | 74 x 58 mm | 71 x 47.3 mm |
| Cooling System: | Liquid cooled, | Liquid cooled |
| Compression Ratio: | 10.8:1 | 10.8:1 |
| Lubrication: | Wet sump | Wet sump |
| Engine Oil: | Semi-Synthetic, 10W/40 | 10W/40 |
| Induction: | 2x Keihin CVK34 carburetor | 4x 38 mm Keihin CVKD (Constant Velocity) carburettors / Ram Air System (single intake) |
| Ignition: | TCI (Transistor Controlled Ignition) | Digital |
| Spark Plug: | NGK, DR9EA | NGK, CR9E |
| Starting: | Electric | Electric |
| Max Power: | 60 hp / 43.7 kW @ 9800 rpm | 100 hp / 74 kW @ 10500 rpm |
| Max Power Rear Tyre: | 54.7 hp @ 9500 rpm | 92.8 hp / 69.2 kW @ 10700 rpm |
| Max Torque: | 46.1 Nm / 4.7 kg-m @ 8500 rpm | 7.45 kgf-m / 53.8 lb-ft @ 9000rpm |
| Clutch: | Wet, multiple discs, cable operated | Multi plate wet (oil submerged) hydraulic ‘slipper’ clutch |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Iron, Double cradle frame | Aluminium perimeter |
| Front Suspension: | 38mm Telescopic forks | 43mm Upside-down forks, adjustable ride height, 13-way rebound |
| Front Wheel Travel: | 130 mm / 5.1 in | 120 mm / 4.7 in |
| Rear Suspension: | Swinging arm, single shock adjustable for spring preload | Uni Track monoshock. adjustable ride height, preload, 4-way rebound |
| Rear Wheel Travel: | 100 mm / 3.9 in | 120 mm / 4.7 in |
| Front Brakes: | Single 270mm disc 2 piston caliper | 2x 320mm discs 4 piston calipers |
| Rear Brakes: | Single disc | Single 230mm disc 2 piston caliper |
| Trail: | 91 mm / 3.5 in | 95mm / 3.74 in |
| Front Tyre: | 110/70- 17 | 120/70ZR17 /Std Pressure 36psi |
| Rear Tyre: | 130/70 - 17 | 180/55ZR17 /Std Pressure 41psi |
| Rake: | 63° | 24.5° |
| Wheelbase: | 1435 mm / 56.4 in | 1420 mm / 55.9 in |
| Dry Weight: | 176 kg / 388 lbs | 195 kg / 420.9 lbs |
| Fuel Capacity: | 15.9 Litres / 4.2 US gal | 18 Litres / 4.7 US gal |