| MODEL | MOTO MORINI 500 SEI-V SPORT 1980 |
| Year | 1980 |
| Engine Type | Four stroke, 72° V-twin, belt driven single cam operating pushrods, 2 valves per cylinder |
| Displacement / Capacity | 478 cc / 29.1 cu in |
| Bore X Stroke | 69 x 64.2 mm |
| Compression Ratio | 11.2:1 |
| Cooling System | Air cooled |
| Max Power | 34.3 kW / 46 hp @ 7500 rpm |
| Max Torque | — |
| Ignition | Electronic |
| Induction | 2x 26 mm Dell'Orto carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shock |
| Front Brakes | 2x discs |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 180.0 kg / 396.8 lbs |
| WHEEL SPECS | |
| Front Tyre | 100/90-18 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A sports roadster version of Morini's 478 cc belt-driven V-twin with the Sei-V name, in the same state of tune as the 500 Sport. It has a five-speed gearbox, twin front discs and a 16-litre tank.
