Vespa PX125 (1998-02) vs Vespa 150 GS (1955-61) vs KTM 990 Supermoto R (2009)
Comparison technical specifications
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| Make: | Vespa | Vespa | KTM |
| Model: | PX125 | 150 GS | 990 Supermoto R |
| Years: | 1998-02 | 1955-61 | 2009 |
| Engine: | Single cylinder, 2 stroke | Two stroke, single cylinder | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 123.4 cc 7.5 cub in | 145.5 cc / 8.8 cub in | 999.8 cc / 60.9 cu-in |
| Bore x Stroke: | 52.5 x 57 mm | 57 x 57 mm | 101 x 62.4mm |
| Ignition: | CDI | 6 pole flywheel magneto | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment |
| Starting: | Kick start | Kick start | Electric |
| Clutch: | Wet, multiplate | Wet, multiplate with cork inserts | Wet multi-disc clutch, operated hydraulically |
| Max Power: | 8.8 kW / 12 hp @ 6600 rpm | 6.0 kW / 8.2 hp @ 7500 rpm | 114.hp / 83.2 kW) @ 4000 rpm |
| Transmission: | 4 Speed, grip-shift, constant mesh | 4 Speed, grip-shift, constant mesh | 6 Speed |
| Final Drive: | Direct drive | Direct drive | Chain. |
| Frame: | Pressed sheet steel, streamlined monocoque structure | Pressed sheet steel, streamlined monocoque structure | Tubular space frame made from chrome molybdenum steel, powder-coated |
| 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 | 48mm WP USD adjustable |
| 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 | WP shock, fully adjustable |
| Front Brakes: | 200 mm single disc | Drum, expanding type with cooling ribs | 2x 305mm discs 4 piston calipers |
| Rear Brakes: | 150 mm expanding drum | Drum, expanding type with cooling ribs | Single 240mm disc 2 piston caliper |
| Front Tyre: | 110/70-11 | 3.5 x 10" | 120/70 ZR17 |
| Rear Tyre: | 120/70-11 | 3.5 x 10" | 180/55 ZR17 |
| Wheelbase: | 1260 mm / 49.7 in | 1180 mm / 46.4 in | 1505 mm / 59.3 in |
| Dry Weight: | 95 kg / 209 lbs | 100 kg / 220 lbs | 192 kg / 423 lbs |
| Fuel Capacity: | 8 L / 2.1 US gal | 12 L / 3.17 US gal | 15 Litres / 3.9 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 | 17.2 km/lit |
| Top Speed: | 90 km/h / 56 mph | 100 km/h / 62 mph | 229.8 km/h |