Ducati 851 SP (1989)
Comparison technical specifications
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| Make: | Ducati |
| Model: | 851 SP |
| Years: | 1989 |
| Engine: | Four stroke, 90°“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: | Öhlins 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 |