Honda CB 450K1 (1968) vs Kawasaki GPz 500S EX 500R Ninja (2009)
Comparison technical specifications
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| Make: | Honda | Kawasaki |
| Model: | CB 450K1 | GPz 500S EX 500R Ninja |
| Years: | 1968 | 2009 |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder | Four stroke, parallel twin cylinders. DOHC, 4 valves per cylinder. |
| Capacity: | 445 cc / 27.1 cu-in | 498 cc / 30.4 cu-in |
| Bore x Stroke: | 70 x 57.8 mm | 74 x 58 mm |
| Cooling System: | Air cooled | Liquid cooled, |
| Compression Ratio: | 9.0:1 | 10.8:1 |
| Induction: | 2x 32mm Keihin carburetors | 2x Keihin CVK34 carburetor |
| Ignition: | Coil with auto-advance, twin contact breaker | TCI (Transistor Controlled Ignition) |
| Starting: | Kick | Electric |
| Max Power: | 45 hp / 32.8 kW @ 9000 rpm | 60 hp / 43.7 kW @ 9800 rpm |
| Max Torque: | 37.4 Nm / 27.6 lb-ft @ 7000 rpm | 46.1 Nm / 4.7 kg-m @ 8500 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Tubular semi-duplex cradle with single front down-tube | Iron, Double cradle frame |
| Front Suspension: | Telescopic forks with two-way damping. | 38mm Telescopic forks |
| Rear Suspension: | Swing arm, shock absorbers with adjustable preload | Swinging arm, single shock adjustable for spring preload |
| Front Brakes: | Drum | Single 270mm disc 2 piston caliper |
| Rear Brakes: | Drum | Single disc |
| Front Tyre: | 3.25-18 | 110/70- 17 |
| Rear Tyre: | 3.50-18 | 130/70 - 17 |
| Wheelbase: | 1300 mm / 53 in | 1435 mm / 56.4 in |
| Dry Weight: | 187 kg / 412 lbs | 176 kg / 388 lbs |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 15.9 Litres / 4.2 US gal |