Kawasaki Z 500 (1978) vs Kawasaki KR1S (1991)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | Z 500 | KR1S |
| Years: | 1978 | 1991 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | Ttwo stroke, parallel twin cylinder, Electronic variable exhaust valve ( KIPS ) equipment |
| Capacity: | 497 cc / 30.3 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 55 x 52.4 mm | 56.0 x 50.6 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 9.5:1 | 7.4:1 |
| Induction: | 4x 22mm TK | 2x 28mm Keihin PWK carburetor |
| Ignition: | CDI | Capacitor discharge |
| Starting: | Electric | Kick |
| Max Power: | 52 hp / 38.7 kW @ 9000 rpm | 59.1 hp / 43.2 kW) @ 10500 rpm |
| Max Torque: | 4.5 kgf-m / 32.5 lb-ft @ 7500 rpm | 40.2 Nm / 4.1 kgf-m @ 10500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic forks | 41mm stanchions, air assisted telescopic fork with unstepped preload adjustment |
| Rear Suspension: | Dual shock | Bottom Link Uni-Trak with air adjustable gas shock, unstepped preload, and four-way rebound damping |
| Front Brakes: | 2x discs | 2x discs 4 piston calipers |
| Rear Brakes: | Single disc | Single disc 2 piston caliper |
| Front Tyre: | 3.25-19 | 100/70 VR17 |
| Rear Tyre: | 3.75-18 | 130/60 VR18 |
| Dry Weight: | 174 kg / 384 lbs | 131 kg / 288.8 lbs |
| Fuel Capacity: | 15 Litres / 3.9 US gal | 16.0 Litres / 4.2 gal |