Horex Regina 250 (1955-60) vs Kawasaki GPz 750R Ninja / ZX 750R (1985)
Comparison technical specifications
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| Make: | Horex | Kawasaki |
| Model: | Regina 250 | GPz 750R Ninja / ZX 750R |
| Years: | 1955-60 | 1985 |
| Engine: | Four stroke, single cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 249 cc / 15.1 cu-in | 746 cc / 45.6 cu-in |
| Bore x Stroke: | 69 x 91,5 mm | 70.0 x 48.6 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 6.35:1 | 10.5:1 |
| Induction: | Carburetor | 4x 34mm Mikuni carburetors |
| Ignition: | 6 Volt | Transistorised, electronic advance |
| Starting: | Kick | Electric |
| Max Power: | 17 hp @ 6640 rpm | 92 hp / 67.2 kW @ 10000 rpm |
| Transmission: | 4 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Hydraulic telescopic forks | Air assisted forks, 160mm wheel travel. |
| Rear Suspension: | Dual shocks | Single shock swinging arm, 109mm wheel travel. |
| Front Brakes: | 150mm Drum | 2x 270mm discs |
| Rear Brakes: | 150mm Drum | Single 256mm disc |
| Front Tyre: | 3.25 -19 | 120/80-16 |
| Rear Tyre: | 3.50 -19 | 130/80-18 |
| Dry Weight: | 140 Kg / 308.6 lbs | 228 kg / 502.5 lbs |
| Fuel Capacity: | 13.5 Litres / 3.5 US gal | 22 Litres / 5.8 US gal |