Technical specifications
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| Model: |
Ducat ST4 |
| Years: |
1997-98 |
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Engine:
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Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder
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Capacity:
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916 cc / 55.9 cu in
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Bore x Stroke:
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94 x 66 mm
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Cooling System:
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Liquid cooled
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Compression Ratio:
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11.0:1
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Lubrication:
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Wet sump
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Engine Oil:
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Synthetic, 20W/50
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Exhaust:
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2 aluminum mufflers with catalytic converter (non-catalytic on USA version)
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Induction:
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Fuel injection, 50 mm throttle body, Marelli 1.6M
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Ignition:
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Marelli electronic
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Spark Plug:
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Champion, RA59GC
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Starting:
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Electric
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Battery:
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12V 16Ah
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Max Power:
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78.7 kW / 107 hp @ 9000 rpm
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Max Torque:
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89 Nm / 9 kgf-m / 65.6 ft-lb @ 7500 rpm
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Clutch:
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Hydraulically actuated dry multiplate clutch
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Transmission:
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6 Speed
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Primary Drive Ratio:
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1.84:1 (32/59)
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Gear Ratios:
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1st 2.466 / 2nd 1.765 / 3rd 1.350 / 4th 1.091 / 5th 0.958 / 6th 0.857:1
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Final Drive Ratio:
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2.53:1 (15/38)
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Final Drive:
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Chain
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Frame:
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Steel, Trellis frame
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Front Suspension:
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Showa GD081 43mm upside-down fully adjustable fork.
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Front Wheel Travel:
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130 mm / 5.1 in
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Rear Suspension:
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Progressive linkage with fully adjustable Showa GD082 monoshock with piggy back aluminum swing arm.
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Rear Wheel Travel:
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148 mm / 5.8 in
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Front Brakes:
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2x 320 mm Discs, 4 piston calipers
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Rear Brakes:
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Single 245 mm disc, 2 piston caliper
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Front Tyre:
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120/70 - ZR17
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Rear Tyre:
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180/55 - ZR17
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Dimensions:
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Length: 2070 mm / 81.5 in Width: 910 mm / 35.8 in Height: 1180 mm / 46.5 in
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Wheelbase:
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1430 mm / 56.3 in
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Seat Height:
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820 mm / 32.3 in
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Dry Weight:
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214.5 kg / 474 lbs
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Fuel Capacity:
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21 Litres / 5.5 US gal / 4.6 Imp gal
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Consumption Average:
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5.1 L/100 km / 19.8 km/l / 46.6 US mpg / 55.9 Imp mpg
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Standing ¼ Mile:
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11.3 sec / 200 km/h / 124 mph
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Top Speed:
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251 km/h / 156 mph
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