Kawasaki KL 250 (1980-81) vs Kawasaki Z 900 (2017) vs Kawasaki ZX-6R Ninja (2017) vs Kawasaki KL 250 Super Sherpa (2007-10) vs Kawasaki Z 400 (1980-81)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki | Kawasaki | Kawasaki |
| Model: | KL 250 | Z 900 | ZX-6R Ninja | KL 250 Super Sherpa | Z 400 |
| Years: | 1980-81 | 2017 | 2017 | 2007-10 | 1980-81 |
| Engine: | Four stroke single cylinder. SOHC, 2 Valve | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, parallel twin cylinder, SOHC, 2 Valve per cylinder. |
| Capacity: | 246 cc / 15.0 cu-in | 943 cc / 57.5 cu-in | 636 cc / 38.8 cub in | 249 cc / 15.2 cu-in | 398 cc / 24.2 cu-in |
| Bore x Stroke: | 70 х 64 mm | 73.4 x 56.0mm | 67.0 x 45.1mm | 71 x 34.2 mm | 64 х 62 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled | Air cooled | Air cooled |
| Compression Ratio: | 8.9:1 | 11.8:1 | 12.9:1 | 9.3:1 | 9.4:1 |
| Induction: | Carburetor | DFI® with 36mm Keihin throttle bodies | DFI® with four 38mm Keihin throttle bodies and oval sub-throttles | Mikuni BST34 carburetor | 2x Keihin CV32 6caburetor |
| Ignition: | TCBI with electronic advance | TCBI with digital advance | Digital CDI | Battery & coil | |
| Starting: | Kick | Electric | Electric | Elctric | Electric |
| Max Power: | 21 hp / 15.6 kW @ 8500 rpm | 125 hp / 91.2 kW @ 9500 rpm | 97.7 kW / 131 hp @ 13500 rpm | 30 hp / 22.3 kW @ 8500 rpm ( rear tyre 23.5 hp @ 8200 rpm ) | 36 hp / 26.8 kW @ 8500 rpm |
| Max Torque: | 2 kgf-m / 14.4 lb-ft @ 6500 rpm | 98 Nm / 72.7 lb-ft @ 7700 | 71 Nm / 7.2 kgf.m / 52.4 lb-ft @ 11500 rpm | 2.6 kgf-m / 18.8 lb-ft @ 7500 rpm | 3.3 kgf-m / 23.8 lb-ft @ 7500 rpm |
| Final Drive: | Chain | Sealed chain | 520 series X-ring chain | Chain | Chain |
| Front Suspension: | Telescopic forks | 41mm inverted fork with rebound damping and spring preload adjustability | 41mm inverted Showa BP-SFF fork with top-out springs, stepless compression and rebound damping, adjustable spring preload | 36mm Telescopic forks, | Telescopic fork |
| Rear Suspension: | Dual shocks | Horizontal back-link, stepless rebound damping, adjustable spring preload | Bottom-link Uni-Trak® with gas-charged shock, top-out spring and pillow ball upper mount, stepless compression damping, 25-way adjustable rebound damping, fully adjustable spring preload | Uni- track/truck and swing arm | Swing arm |
| Front Brakes: | Drum | 2x semi-floating 310 mm discs 4 piston calipers | 2 x 310mm petal rotors with dual radial-mount, Nissin four-piston, monobloc calipers and available KIBS ABS | Single 250mm disc 2 piston caliper | Single 226mm disc |
| Rear Brakes: | Drum | Single 220mm disc 1 piston caliper | Single 220mm petal rotor with single-piston caliper and KIBS ABS | Single 200mm disc 1 piston caliper | 180mm Drum |
| Front Tyre: | 3.00-21 | 120/70 ZR17 | 120/70 ZR17 | 7.75-21 | 3.25 - S18 4PR |
| Rear Tyre: | 4.00-17 | 180/55ZR17 | 180/55 ZR17 | 4.10-18 | 3.50 - SIB 4PR |
| Fuel Capacity: | 10 Litres / 2.6 US gal | 17 Litres / 4.5 US gal | 17 Litres 4.5 US gal | 9 Litres / 2.3 US gal | 14 Litres / 3.6 US gal |