| MODEL | MOTO MORINI 500 MAESTRO 1978 |
| Year | 1978 |
| Engine Type | Four stroke, 72 degree V-twin, belt driven single cam operating pushrod, 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 | 33.3 lb-ft @ 5100 rpm |
| Ignition | Electronic |
| Induction | 2 x 26 mm Dell'Orto carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telehydraulic forks |
| Rear Suspension | Swinging arm with dual adjustable shocks |
| Front Brakes | 2 x 260 mm discs |
| Rear Brakes | Single 260 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 167 kg / 368 lbs |
| Wet Weight | 184 kg / 405.7 lbs |
| WHEEL SPECS | |
| Front Tyre | 90/90-18 |
| Rear Tyre | 3.50-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Maestro was a 1978 variant of the 500 V-twin sharing the GT engine and brake set-up, listed with 18 inch wheels and a slightly different tyre fitment. The source gives few details separating it from the other 500 road models.
