Horex Regina 250 (1955-60) vs Kawasaki KDX 175 (1981-82)
Comparison technical specifications
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| Make: | Horex | Kawasaki |
| Model: | Regina 250 | KDX 175 |
| Years: | 1955-60 | 1981-82 |
| Engine: | Four stroke, single cylinder. | Two stroke, single cylinder, read valve |
| Capacity: | 249 cc / 15.1 cu-in | 173 cc / 10.5 cu-in |
| Bore x Stroke: | 69 x 91,5 mm | 66.0 x 50.6 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 6.35:1 | 7.6:1 |
| Induction: | Carburetor | Mikuni carburetor |
| Ignition: | 6 Volt | CDI |
| Starting: | Kick | Kick |
| Max Power: | 17 hp @ 6640 rpm | 20.1 hp / 14.9 kW @ 9000 rpm |
| Transmission: | 4 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Hydraulic telescopic forks | Telescopic forks |
| Rear Suspension: | Dual shocks | Single shock adjustable for compression rebound and spring preload, |
| Front Brakes: | 150mm Drum | Drum |
| Rear Brakes: | 150mm Drum | Drum |
| Front Tyre: | 3.25 -19 | 3.00-21 |
| Rear Tyre: | 3.50 -19 | 4.00-18 |
| Dry Weight: | 140 Kg / 308.6 lbs | 103 kg / 227 lbs |
| Fuel Capacity: | 13.5 Litres / 3.5 US gal | 10.5 Litres / 2.7 US gal |