Segment: Sport Touring
Production years: 2003, 2004
In 1997, the Italian motorcycle maker created the ST family, a series of sport-touring machines manufactured from 1997 to 2007. The family comprised five models with similar appearances but different engines.
The range comprised the Ducati ST2, ST3, ST3S, ST4, and ST4S models and were intended to compete with other sport-touring machines like the Honda VFR. The bike was fitted with a full fairing, a large, one-piece dual seat with a relaxed riding position, a center stand, and optional matching side-mounted panniers.
In 2003, the manufacturer launched the Ducati ST4, a sport-touring motorcycle that debuted in 1999 and was manufactured until 2005. The machine was powered by a retuned version of the engine used by the Ducati 916 model.
The 2003 Ducati ST4 was fitted with standard features, such as a full fairing, a windscreen, a one-piece dual seat with a passenger grab rail, a dual exhaust system with a muffler on each side, and three-spoke lightweight alloy wheels.
At the bike's core, the maker installed a 916cc four-stroke liquid-cooled V-twin engine with an Electronic Fuel Injection (EFI) system, delivering an output power of 105 hp at 9,000 rpm and 89 Nm (66 lb-ft) torque with peak force at 7,500 rpm.
The bike's suspension comprised a 43 mm fully adjustable upside-down Showa fork on the front and a fully adjustable Sachs shock absorber with progressive linkage on the rear, offering excellent handling capabilities.
engine specs | Type: | Liquid cooled, four stroke, 90 degrees L-twin cylinder, DOHC, Desmodromic 4 valve per cylinder | Displacement: | 916 cm3 | Bore X Stroke: | 3.70x2.59 in OR 94 mm | Compression Ratio: | 11.0:1 | Horsepower: | 105/9000 KW(hp)/RPM | Torque: | 65.6/7500 lb-ft/RPM OR 89/7500 Nm/RPM | Fuel System: | Marelli electronic fuel injection |
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transmission specs | Gearbox: | 6-speed | Clutch: | - | Primary Drive: | - | Final Drive: | Chain |
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chassis specs | Frame: | - | Front Suspension: | Showa 43mm upside-down fully adjustable fork | Rear Suspension: | Progressive Linkage With Fully adjustable Sachs monoshock with piggy back aluminum swing arm | Front Brake: | 2x320mm discs 4 piston calipers | Rear Brake: | Single 245mm disc 2 piston caliper |
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dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | 32.3 in OR 820 mm | Wheelbase: | 56.3 in OR 1430 mm | Ground Clearance: | - | Weight: | 474 lbs OR 215 kg | Fuel Capacity: | 5.5 gallons OR 20.8 L |
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tyres specs | Front: | 120/70-ZR17 | Rear: | 180/55-ZR17 |
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