Kawasaki ZX-R 400-SP (1990) vs Kawasaki KR1S (1991)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | ZX-R 400-SP | KR1S |
| Years: | 1990 | 1991 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder. | Ttwo stroke, parallel twin cylinder, Electronic variable exhaust valve ( KIPS ) equipment |
| Capacity: | 399 cc / 24.3 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 57 х 39 mm | 56.0 x 50.6 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 12.0:1 | 7.4:1 |
| Induction: | 4x Keihin CVKD30 carburetors | 2x 28mm Keihin PWK carburetor |
| Ignition: | Transistorized | Capacitor discharge |
| Starting: | Electric | Kick |
| Max Power: | 59 hp / 44 kW @ 12000 rpm | 59.1 hp / 43.2 kW) @ 10500 rpm |
| Max Torque: | 40 Nm / 29.5 lb-ft @ 10000 rpm | 40.2 Nm / 4.1 kgf-m @ 10500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Aluminum diamond tubular, double cradle | Tubular diamond, Aluminium extruded E-Box frame |
| Front Suspension: | 41mm Upside down Showa forks. adjustable preload with rebound damping. | 41mm stanchions, air assisted telescopic fork with unstepped preload adjustment |
| Rear Suspension: | Uni-Trek adjustable preload with rebound damping. | Bottom Link Uni-Trak with air adjustable gas shock, unstepped preload, and four-way rebound damping |
| Front Brakes: | 2x 300mm discs 4 piston calipers | 2x discs 4 piston calipers |
| Rear Brakes: | Single 240mm disc 2 piston caliper | Single disc 2 piston caliper |
| Front Tyre: | 120/60-17 | 100/70 VR17 |
| Rear Tyre: | 160/60-17 | 130/60 VR18 |
| Wheelbase: | 1395 mm / 54.9 in | 1365 mm / 53.7 in |
| Seat Height: | 765 mm / 30.1 in | 755 mm / 29.7 in |
| Dry Weight: | 160 kg / 352.7 lbs | 131 kg / 288.8 lbs |
| Fuel Capacity: | 16 Litres / 4.2 US gal | 16.0 Litres / 4.2 gal |