Vespa PK 50, PK50S, PK50 Elestart, PK50XL, PK50XLS, PK50 (1982-93) vs Honda NX 250 Dominator (1991) vs Honda CB-1 (1991-)
Comparison technical specifications
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| Make: | Vespa | Honda | Honda |
| Model: | PK 50, PK50S, PK50 Elestart, PK50XL, PK50XLS, PK50 | NX 250 Dominator | CB-1 |
| Years: | 1982-93 | 1991 | 1991- |
| Engine: | Two stroke, single cylinder | Four stroke, single cylinder, DOHC, 4 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 49.8 cc / 3.0 cub in | 239 cc / 14.6 cu-in | 399 cc / 24.3 cu-in |
| Bore x Stroke: | 38.4 x 43 mm | 68.5 x 64.8 mm | 55 x 42 mm |
| Compression Ratio: | 9.1:1 | 11.0:1 | 11.3:1 |
| Induction: | Rotary valve | Carburetor | 2x 30mm Keihin CV carburetor |
| Ignition: | Flywheel magneto | CDI | CDI |
| Starting: | Kick start | Electric | Electric |
| Max Power: | 2.7 kW / 3.7 Hp @ 7000 rpm | 22.7 hp / 17 kW @ 8000 rpm | 55.2 hp / 46.5 kW @ 10000 rpm |
| Transmission: | 4 Speed, grip shift | 6 Speed | 6 Speed |
| Final Drive: | Direct drive | Chain | Chain |
| Front Suspension: | Trailing arm, coil spring, damper | 37 mm Telescopic forks | 41mm Telescopic forks |
| Rear Suspension: | Coil spring, damper | Pro-Link. Swingarm | Pro-link monoshock |
| Front Brakes: | 150 mm drum | Single disc | Single 310mm disc 2 piston caliper |
| Rear Brakes: | 150 mm drum | Drum | Single 240mm disc 1 piston caliper |
| Front Tyre: | 3 x 10" | 100/90-19 | 110/70-17 |
| Rear Tyre: | 3 x 10" | 120/90-16 | 140/60-17 |
| Dry Weight: | 77 kg / 169.7 lbs | 123 kg / 271 lbs | 183 kg / 416.7 lb |
| Fuel Capacity: | 6.2 L / 1.6 US gal | 9 Litres / 2.4 US gal | 13 Litres / 3.9 US gal |