The Ducati 851 SP is a motorcycle manufactured in 1989, built with a four-stroke engine and a 90-degree, L-twin cylinder, desmodromic 4 valves per cylinder. It has a capacity of 851 cc and a bore x stroke measurement of 92 x 64 mm with a compression ratio of 11.5:1. The bike is liquid-cooled and has Weber I.A.W. CPU P7 electronic fuel injection with a 2 x 50 mm throttle body. The ignition system is inductive magnetically triggered and has a Champion A59GC spark plug. The 851 SP has a max power of 89.7 kW / 122 hp at 10000rpm, and a dry weight of 188 kg / 414 lbs with a fuel capacity of 20 litres/5.3 US gal/4.4 Imp gal. It has a top speed of 250 km/h / 155 mph, and the frame comes in white or bronze, with a red color option. The bike has a Marzocchi M1R upside-down fork and an Åhlins single shock with rebound compression damping adjustable suspension system. The front brake has a 2 x 320mm disc, with 4 piston calipers and the rear brake a single 245 mm disc, with 2 piston calipers. The primary drive ratio is 2:1 (31/62), and the final drive ratio is 2.6:1 (15/39), with a chain final drive. The bike has a length of 2000 mm / 78.7 in, a width of 670 mm / 26.4 in, a height of 1120 mm / 44.1 in, a wheelbase of 1430 mm / 56.3 in, and a seat height of 760 mm / 29.9 in. Overall, the Ducati 851 SP is a powerful, fast, and stylish motorcycle with advanced technology features.
Technical specifications:
Make Model: Ducati 851 SP
| Year | 1989 |
|---|---|
| Engine | Four stroke, 90 degrees L twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven |
| Capacity | 851 cc / 51.9 cu in |
| Bore x Stroke | 92 x 64 mm |
| Compression Ratio | 11.5:1 |
| Cooling System | Liquid cooled |
| Induction | Weber I.A.W. CPU P7 electronic fuel injection. 2 x 50mm throttle bodies |
| Spark Plugs | Champion A59GC |
| Ignition | Inductive magnetically triggered |
| Battery | 12V 16Ah |
| Starting | Electric |
| Max Power | 89.7 kW / 122 hp @ 10000rpm |
| Clutch | Dry,multiplate |
| Transmission | 6 Speed |
| Primary Drive Ratio | 2:1 (31/62) |
| Gear Ratios | 1st 2.466 / 2nd 1.765 / 3rd 1.400 / 4th 1.182 / 5th 1.043 / 6th 0.958:1 |
| Final Drive Ratio | 2.6:1 (15/39) |
| Final Drive | Chain |
| Frame | Tubular steel |
| Front Suspension | Marzocchi M1R upside-down fork with rebound compression damping adjustable |
| Rear Suspension | ~Ahlins single shock with preload and damping adjust |
| Front Brakes | 2 x 320 mm Disc, 4 piston calipers |
| Rear Brakes | Single 245 mm disc, 2 piston caliper |
| Front Tyre | 120/70 x 17 |
| Rear Tyre | 180/55 x 17 |
| Dimensions | Length: 2000 mm / 78.7 in Width: 670 mm / 26.4 in Height: 1120 mm / 44.1 in |
| Wheelbase | 1430 mm / 56.3 in |
| Seat Height | 760 mm / 29.9 in |
| Dry Weight | 188 kg / 414 lbs |
| Fuel Capacity | 20 Litres / 5.3 US gal / 4.4 Imp gal |
| Top Speed | 250 km/h / 155 mph |
| Colours | White frame or bronze frame, red |
