| MODEL | DUCATI 851SP3 1991 |
| Year | 1991 |
| Engine Type | Four stroke, 90° V-twin (L-twin), DOHC, desmodromic, 4 valves per cylinder, belt driven |
| Displacement / Capacity | 888 cc / 54.2 cu in |
| Bore X Stroke | — |
| Compression Ratio | 11.1:1 |
| Cooling System | Liquid cooled |
| Max Power | 86.8 kW / 118 hp @ 10500 rpm (rear wheel: 81.6 kW / 111 hp @ 10500 rpm) |
| Max Torque | 80.4 Nm / 8.2 kgf-m / 59.3 ft-lb @ 8250 rpm |
| Ignition | Inductive, magnetically triggered |
| Induction | Weber I.A.W. CPU P7 electronic fuel injection, 2 x 50 mm throttle bodies |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Dry, multiplate |
| Final Drive | Chain, ratio 2.466:1 (15/37) |
| CHASSIS SPECS | |
| Frame | Tubular steel |
| Front Suspension | 42 mm Öhlins FG 9050 upside-down fork, rebound and compression damping adjustable |
| Rear Suspension | Öhlins DU 8070 single shock, preload and damping adjustable |
| Front Brakes | 2 x 320 mm disc, 4 piston calipers |
| Rear Brakes | Single 245 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2000 mm / 78.7 in |
| Overall Width | 670 mm / 26.4 in |
| Overall Height | 1120 mm / 44.1 in |
| Seat Height | 760 mm / 29.9 in |
| Wheelbase | 1430 mm / 56.3 in |
| Ground Clearance | — |
| Dry Weight | 188 kg / 414 lb |
| Wet Weight | 207 kg / 456 lb |
| WHEEL SPECS | |
| Front Tyre | 120/70 x 17 |
| Rear Tyre | 180/55 x 17 |
| FUEL SYSTEM | |
| Fuel Capacity | 20 Litres / 5.3 US gal / 4.4 Imp gal |
| Fuel Consumption | 5.6 L/100 km / 41.6 US mpg |
| Top Speed | 250 km/h / 155 mph |
The SP3 was the numbered, limited 1991 evolution of the SP2, recognisable by upswept Termignoni silencers, black Brembo wheels and remote fluid reservoirs on the brake and clutch masters. Inside it had higher-compression pistons, forced-air induction, stronger crankcases and an updated clutch, and each one carried a numbered plaque.
