Ducati 851 Strada (1989-90)

The Ducati 851 Strada is a motorcycle model that was manufactured between 1989 and 1990. It features a four-stroke, 90-degree L-twin cylinder engine with DOHC and desmodromic 4 valves per cylinder, belt-driven and with a capacity of 851cc. The bike has a compression ratio of 11:1 and is liquid-cooled with Weber I.A.W. CPU P7 electronic fuel injection.

The engine provides a power output of 77 kW / 105hp at 9000rpm and a maximum torque of 71.2 Nm at 7250rpm. It has a 6-speed transmission with a primary drive ratio of 2:1 and a final drive ratio of 2.6:1. The frame is tubular steel and the suspension consists of a Marzocchi M1R upside-down fork at the front and a Marzocchi Supermono shock at the rear.

The front brakes feature 2x320mm disc with 4-piston calipers, and a single 245mm disc with a 2-piston caliper at the rear. The bike has a white frame with a red finish. Its dimensions include a length of 2000mm, width of 670mm, and height of 1120mm, with a wheelbase of 1430mm and a dry weight of 190kg.

The Ducati 851 Strada has a fuel capacity of 20 liters and has an average consumption of 5.1 L/100 km. It can go from 0-60km/h in 12.4 meters and from 0-100km/h in 37 meters. It can reach a top speed of 240.9km/h and has a standing 1/4 mile time of 11.1 seconds with a top speed of 194.8 km/h. The bike has been tested and reviewed positively in various publications such as Moto.Revue, Moto Sprint Group Test, and Motociclismo.

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Technical specifications:

Make Model: Ducati 851 Strada

Year: 1989 – 90

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: 11:1

Cooling System: Liquid cooled

Induction: Weber I.A.W. CPU P7 electronic fuel injection. 2 x 50mm throttle bodies

Spark Plugs: Champion A59G

Ignition: Inductive magnetically triggered

Battery: 12V 16Ah

Starting: Electric

Max Power: 77 kW / 105hp @ 9000rpm

Max Torque: 71.2 Nm / 7.26 kgf-m / 52.5 ft-lb @ 7250 rpm

Clutch: Dry,multiplate

Transmission: 6 Speed

Primary Drive Ratio: 2:1 (31/62)

Gear Ratios: 1st 2.466 / 2nd 1.765 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857:1

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: Marzocchi Supermono shock with preload and damping adjustable, rising rate swingarm

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: 190 kg / 419 lbs

Fuel Capacity: 20 L / 5.3 US gal / 4.4 Imp gal

Consumption Average: 5.1 L/100 km / 19.5 km/l / 45.9 US mpg / 55.1Imp mpg

Braking 60 km/h – 0: 12.4 m / 40.7 ft

Braking 100 km/h – 0: 37m / 121.4 ft

Standing 1/4 Mile: 11.1 sec / 194.8 km/h / 121 mph

Top Speed: 240.9 km/h / 149.7 mph

Colours: White frame, red

Road Test: Moto.Revue 1989 Moto Sprint Group Test 1988 Motociclismo 1989 Moto Sprint Group Test 1990 Moto Sprint Group Test 1991