Attribute | ![]() Aprilia RS4 125 2018 × | ![]() Piaggio Liberty 150 S ABS × |
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General | ||
Production from (year) | 2018 | 2020 |
Make | Aprilia | Piaggio |
Model | Aprilia RS4 125 | Piaggio Liberty 150 S ABS |
Category | Sport | Scooter |
Engine and transmission | ||
Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
Valves per cylinder | 4 | - |
Fuel system | Injection. Magneti Marelli M3G ø 32mm ECU | Injection |
Displacement (cm³) | 124.8 | 155 |
Power (kw) | 10.9 | 9.4 |
Cooling system | Liquid | Air |
Transmission type,final drive | Chain | - |
Torque (Nm) | 10.9 | 13 |
Bore (mm) | 58 | 58 |
Stroke (mm) | 47 | 58.6 |
Gearbox | 6-speed | - |
Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Single Overhead Cams (SOHC) |
Emission details | Euro 4 | Euro 4 |
Driveline | Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35). | - |
Ignition | Electronic with CDI capacity discharge | - |
Clutch | Multi-plate in oil bath. | Automatic centrifugal dry clutch |
Lubrication system | Wet sump | Wet sump |
Compression | 12.5:1 | - |
Chassis | ||
Front suspension | Upside down hydraulic fork, 40 mm. | Telescopic fork |
Rear suspension | Asymmetric swingarm with monoshock | Single hydraulic shock absorber with 5-position preload adjustment, |
Front brakes | Single disc. Stainless steel disc with radial 4 piston calliper | Single disc. ABS |
Rear brakes | Single disc. Single 30 mm piston | Expanding brake (drum brake). ABS Tamburo |
Diameter (mm) | 218 | 140 |
Frame type | Aluminium perimeter | High resistance tubular steel |
Front tyre | 110/80-17 | 90/80-16 |
Rear tyre | 130/70-17 | 100/80-14 |
Wheels | Light alloy with 6 split spokes | - |
Front wheel travel (mm) | 110 | 76 |
Rear wheel travel (mm) | 120 | 74 |
Other | ||
Starter | Electric | Electric |
Color options |
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Instruments | Analogue/digital multifunction dashboard with LCD display | - |
Dimensions | ||
Wheelbase (mm) | 1,350 | 1,340 |
Kerb weight (kg) | 120 | 124 |
Overall length (mm) | 1,955 | 1,945 |
Overall width (mm) | 740 | 690 |
Seat height (mm) | 820 | 790 |
Performance | ||
Reserve fuel capacity (l) | 3.5 | - |
Fuel capacity (l) | 14.5 | 6 |