Vespa P 125 ETS (1984-85) vs Vespa 150 GS (1955-61)
Comparison technical specifications
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| Make: | Vespa | Vespa |
| Model: | P 125 ETS | 150 GS |
| Years: | 1984-85 | 1955-61 |
| Production: | 11 711 units | 126 349 units |
| Engine: | Two strike, Single cylinder, | Two stroke, single cylinder |
| Capacity: | 121.2 cc / 7.4 cub in | 145.5 cc / 8.8 cub in |
| Bore x Stroke: | 55 x 51 mm | 57 x 57 mm |
| Compression: | 9.5:1 | 7:1 |
| Carburetor: | Dell'Orto SHBC 20/20L | Dell'Orto UB 23 S3 |
| Cooling: | Air cooled, centrifugal fan | Air cooled, centrifugal fan |
| Fuel Mixture: | 1:50 | 1:15 |
| Ignition: | Electronic | 6 pole flywheel magneto |
| Starting: | Kick start | Kick start |
| Battery: | 12V AC | 6V |
| Clutch: | Wet, multiplate | Wet, multiplate with cork inserts |
| Max Power: | 6.2 kW / 8,6 hp @ 6000 rpm | 6.0 kW / 8.2 hp @ 7500 rpm |
| Transmission: | 4 Speed, grip-shift, constant mesh | 4 Speed, grip-shift, constant mesh |
| Final Drive: | Direct drive | Direct drive |
| Frame: | Pressed sheet steel, streamlined monocoque structure | Pressed sheet steel, streamlined monocoque structure |
| Front Brakes: | 150 mm drum | Drum, expanding type with cooling ribs |
| Rear Brakes: | 150 mm drum | Drum, expanding type with cooling ribs |
| Wheels: | Interchangeable | Interchangeable |
| Front Tyre: | 3.0 x 10" | 3.5 x 10" |
| Rear Tyre: | 3.0 x 10" | 3.5 x 10" |
| Dimensions: | Length: 1680 mm / 66.1 in Width: 700 mm / 27.6 in Height: 1070 mm / 42.1 in | Length: 1700 mm / 67 in Width: 700 mm / 27 in Height: 1050 mm / 41 in |
| Wheelbase: | 1180 mm / 46.5 in | 1180 mm / 46.4 in |
| Ground Clearance: | 252 mm / 9.9 in | 285 mm / 11.2 in |
| Dry Weight: | 85 kg / 187 lbs | 100 kg / 220 lbs |
| Fuel Capacity: | 6.0 L / 1.6 US gal | 12 L / 3.17 US gal |
| Reserve: | 1.2 L / 0.3 US gal | 1.2 L / 0.3 US gal |
| Consumption Average: | 2.1 L/100 km / 48 km/l / 111 US mpg | 3.1 L/100 km / 32 km/l / 80 US mpg |
| Top Speed: | 97 km/h / 62 mph | 100 km/h / 62 mph |