Vespa PX125 (1998-02) vs Vespa 150 GS (1955-61)
Comparison technical specifications
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| Make: | Vespa | Vespa |
| Model: | PX125 | 150 GS |
| Years: | 1998-02 | 1955-61 |
| Engine: | Single cylinder, 2 stroke | Two stroke, single cylinder |
| Capacity: | 123.4 cc 7.5 cub in | 145.5 cc / 8.8 cub in |
| Bore x Stroke: | 52.5 x 57 mm | 57 x 57 mm |
| Cooling: | Air cooled, centrifugal fan | Air cooled, centrifugal fan |
| Fuel Mixture: | 1:50 | 1:15 |
| Ignition: | CDI | 6 pole flywheel magneto |
| Starting: | Kick start | Kick start |
| Clutch: | Wet, multiplate | Wet, multiplate with cork inserts |
| Max Power: | 8.8 kW / 12 hp @ 6600 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 Suspension: | Link arm with coil spring and dual action hydraulic shock absorber | Stub axle with swining hub and variable rate coil spring and double action hydraulic damper |
| Rear Suspension: | Engine and transmission serve as swingarm, dual action shock absorber | Swinging bracket for engine and wheel, with variable rate coil spring and co-axial double action hydraulic damper |
| Front Brakes: | 200 mm single disc | Drum, expanding type with cooling ribs |
| Rear Brakes: | 150 mm expanding drum | Drum, expanding type with cooling ribs |
| Wheels: | Alloy | Interchangeable |
| Front Tyre: | 110/70-11 | 3.5 x 10" |
| Rear Tyre: | 120/70-11 | 3.5 x 10" |
| Dimensions: | Length: 1810 mm / 71.5 in Width: 740 mm / 29.1 in | Length: 1700 mm / 67 in Width: 700 mm / 27 in Height: 1050 mm / 41 in |
| Wheelbase: | 1260 mm / 49.7 in | 1180 mm / 46.4 in |
| Dry Weight: | 95 kg / 209 lbs | 100 kg / 220 lbs |
| Fuel Capacity: | 8 L / 2.1 US gal | 12 L / 3.17 US gal |
| Reserve: | 2.5 L / 0.66 US gal | 1.2 L / 0.3 US gal |
| Consumption average: | 2.7 L/100 km / 37 km/l / 87 US mpg | 3.1 L/100 km / 32 km/l / 80 US mpg |
| Top Speed: | 90 km/h / 56 mph | 100 km/h / 62 mph |