Ducati ST4 (1999-00)

Make Model: Ducat ST4


Year: 1999 – 00
Engine: Four stroke, 90 degrees L twin cylinder, DOHC, desmodromic 4 valves per cylinder
Capacity: 916 cc / 55.9 cu in
Bore x Stroke: 94 x 66 mm
Cooling System: Liquid cooled
Compression Ratio: 11.0:1
Lubrication: Wet sump
Engine Oil: Synthetic, 20W/50
Exhaust: 2 aluminum mufflers with catalytic converter (non-catalytic on USA version)
Induction: Fuel injection, 50 mm throttle body, Marelli 1.6M
Ignition: Marelli electronic
Spark Plug: Champion, RA59GC
Starting: Electric
Battery: 12V 16Ah
Max Power: 78.7 kW / 107 hp @ 9000 rpm
Max Torque: 89 Nm / 9 kgf-m / 65.6 ft-lb @ 7500 rpm
Clutch: Dry, multiple discs, cable operated
Transmission: 6 Speed
Primary Drive Ratio: 1.84:1 (32/59)
Gear Ratios: 1st 2.466 / 2nd 1.765 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857:1
Final Drive Ratio: 2.53:1 (15/38)

Final Drive: Chain
Frame: Steel, Trellis frame
Front Suspension: Showa GD081 43mm upside-down fully adjustable fork.
Front Wheel Travel: 130 mm / 5.1 in
Rear Suspension: Progressive linkage with fully adjustable Showa GD082 monoshock with piggy back aluminum swing arm.
Rear Wheel Travel: 148 mm / 5.8 in
Front Brakes: 2x 320 mm Discs, 4 piston calipers
Rear Brakes: Single 245 mm disc, 2 piston caliper
Front Tyre: 120/70 – ZR17
Rear Tyre: 180/55 – ZR17
Dimensions: Length: 2070 mm / 81.5 in Width: 910 mm / 35.8 in Height: 1180 mm / 46.5 in
Wheelbase: 1430 mm / 56.3 in
Seat Height: 820 mm / 32.3 in
Dry Weight: 214.5 kg / 474 lbs
Fuel Capacity: 21 Litres / 5.5 US gal / 4.6 Imp gal
Consumption Average: 5.1 L/100 km / 19.8 km/l / 46.6 US mpg / 55.9 Imp mpg
Standing 1/4 Mile: 11.3 sec / 200 km/h / 124 mph
Top Speed: 251 km/h / 156 mph


You May Like