| VESPA ET4 50 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single cylinder, four stroke, air-cooled | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 49.3 cm3 | - |
| Bore X Stroke | |
| 1.5x1.6 in OR 38 mm | - |
| Compression Ratio | |
| 11.1:1 | - |
| Horsepower | |
| 3.4/6500 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Fuel System | |
| Weber / Dell'Orto / Mikuni 2-phase | - |
| transmission specs | |
| Gearbox | |
|---|---|
| CVT | - |
| Clutch | |
| Automatic, dry centrifugal | - |
| Final Drive | |
| Belt | - |
| chassis specs | |
| Frame | |
|---|---|
| Loadbearing pressed sheet steel | Aluminium frame |
| Front Suspension | |
| Hydraulic single shock | - |
| Rear Suspension | |
| Hydraulic single shock | - |
| Front Brake | |
| SIngle disc 200 mm | - |
| Rear Brake | |
| Single disc 110 mm | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 69.3 in OR 1760 mm | - |
| Overall Width | |
| 27.6 in OR 701 mm | - |
| Seat Height | |
| 31.7 in OR 805 mm | - |
| Weight | |
| 212 lbs OR 96 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 2.4 gallons OR 9.1 L | - |
| Wheelbase | |
| 50.4 in OR 1280 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 100/80-10" | - |
| Rear | |
| 120/70-10" | - |
