Suzuki DR-Z4SM (2025) vs Vespa 125, P125X, PX 125, PX 125 Arcobleno/Lusso, PK125 S, GTS Super (1977-97) vs Aprilia Pegaso 650 Factory (2007-08)
Comparison technical specifications
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| Make: | Suzuki | Vespa | Aprilia |
| Model: | DR-Z4SM | 125, P125X, PX 125, PX 125 Arcobleno/Lusso, PK125 S, GTS Super | Pegaso 650 Factory |
| Years: | 2025 | 1977-97 | 2007-08 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valve | Two stroke, single cylinder | Four stroke, single cylinder, SOHC, 4 valves |
| Capacity: | 398 cc / 24.3 cu-in | 123.4 cc 7.5 cub in | 659 cc / 40.2 in |
| Bore x Stroke: | 90 x 62.6 mm. | 52.5 x 57.0 mm | 100 x 84 mm |
| Compression Ratio: | 11.1:1 | 9.2:1 | 10.0:1 |
| Ignition: | Digital CDI | Flywheel alternator, with built in H.T. coil | Digital |
| Starting: | Electric | Kick start | Electric |
| Max Power: | 28 kW / 38 hp @ 8000 rpm | 5.9 kW / 8 hp @ 5800 rpm | 36.4 kW / 48 hp @ 6250 rpm |
| Max Torque: | 37 Nm / 27.3 lb-ft @ 6500 rpm | 10.5 kW / 1.07 kgf-m / 7.7 ft/lb @ 4500 rpm | 61.3 Nm / 6.25 kgf-m / 45.2 lb-ft @ 5200 rpm |
| Clutch: | Wet, multiple discs, cable operated | Multiplate | Multi-plate in oil bath |
| Transmission: | 5 Speed | 4 Speed, grip-shift, constant mesh | 5 Speed |
| Final Drive: | Chain, #520 | Direct drive | Chain |
| Front Suspension: | Telescopic, 49 mm, oil-damped, 11-way compression damping, adjustable spring preload | Helical spring and double acting hydraulic dampers | Ø45 mm Marzocchi telescopic fork |
| Rear Suspension: | Link-type, fully adjustable spring preload, 26-way compression damping | Helical spring and double acting hydraulic dampers | High strength steel swingarm. Aprilia Progressive System (APS) rising rate linkages. Sachs hydraulic monoshock with adjustable rebound and preload. |
| Front Brakes: | Single disc | Drum, 125 mm | Single Ø320 mm disc, 2 piston caliper |
| Rear Brakes: | Single disc | Drum, 125 mm | Single Ø240 mm disc, 1 piston caliper |
| Front Tyre: | 120/70R-17M/C 58h | 3.5 x 10" | 100/90-19 |
| Rear Tyre: | 140/70R-17M/C 66H | 3.5 x 10" | 130/80-17 |
| Dimensions: | Length 2195 mm / 86.4 in Width 885 mm / 34.8 in. Height 1190 mm / 46.9 in | Length: 1655 mm / 65.2 in Width: 790 mm / 31.1 in Height: 1170 mm / 46.4 in | Length: 2173 mm / 85.6 in |
| Wheelbase: | 1465 mm / 57.7 in | 1250 mm / 49.2 in | 1479 mm / 58.2 in |
| Fuel Capacity: | 8.7 Litres / 2.3 US gal | 8 L / 2.1 US gal | 16 Litres / 4.2 US gal |