Motorcycle Segment:
Sport Touring
Key Competitors:
BMW R1100/1150RS, Honda VFR800/VFR1200, Kawasaki GTR1400, Yamaha FJR1300
Model Focus:
Combining Ducati's performance heritage with long-distance comfort and practicality.
Manual Value Proposition:
Provides essential OEM part identification and numbers for maintenance and repair of a specific Ducati era.
Geographic Coverage:
All Countries
Estimated Page Count:
Comprehensive (specific count not provided, typical for factory parts catalog)
Manual Type:
Factory Parts Catalogue
Languages:
English, German, Italian, French, Spanish
Engine Components:
Cylinders, pistons, valves, camshafts, crankshaft, lubrication system, cooling system, fuel injection system, exhaust system
Transmission Components:
Gearbox, clutch, final drive, gear shift mechanism
Chassis Components:
Frame, swingarm, suspension (front fork, rear shock absorber), steering system
Braking System Components:
Brake calipers, master cylinders, brake lines, brake discs, ABS components (where applicable)
Electrical System Components:
Wiring harnesses, ignition system, lighting, battery, starter motor, alternator, instrumentation
Fuel System Components:
Fuel tank, fuel pump, fuel injectors, fuel lines
Bodywork And Trim:
Fairings, seat, handlebars, mirrors, fenders, luggage systems
Wheels And Tires:
Wheels, spokes, tires, valve stems
Parts Identification:
Detailed diagrams with exploded views and part numbers for every component.
Part Number Reference:
Accurate and genuine Ducati part numbers for ordering and replacement.
Assembly Disassembly Guidance:
Illustrative guidance for identifying components during disassembly and reassembly.
Depth Of Coverage:
Comprehensive OEM parts listing, essential for repair, restoration, and part sourcing.
Diagrams And Illustrations:
Features detailed, high-resolution exploded view diagrams essential for visual identification of all parts.
Engine Type:
Desmodromic L-Twin, four-stroke
Displacement:
ST4: 916cc; ST4S/ST4S-ABS: 996cc (Testastretta)
Bore X Stroke:
ST4: 94 x 66 mm; ST4S: 98 x 66 mm
Valve Train:
Desmodromic actuation, 4 valves per cylinder
Horsepower:
ST4: Approx. 107 hp @ 8750 rpm; ST4S: Approx. 117 hp @ 8750 rpm
Torque:
ST4: Approx. 91 Nm @ 7000 rpm; ST4S: Approx. 96 Nm @ 7000 rpm
Fuel Delivery:
Fuel Injection (Weber Marelli)
Fuel Type:
Unleaded gasoline, 95 RON recommended
Cooling Method:
Liquid-cooled
Length:
Approx. 2100 mm (Varies slightly by model)
Width:
Approx. 750 mm (Handlebar width)
Height:
Approx. 1230 mm (Seat height varies)
Wheelbase:
Approx. 1440 mm
Dry Weight:
ST4: Approx. 204 kg; ST4S: Approx. 206 kg
Wet Weight:
Approx. 225 kg (Estimated with fluids)
Luggage Capacity:
Designed for optional Ducati panniers and top case.
ABS Availability:
Available as ST4S-ABS variant.
Braking System Type:
Dual 320mm discs with 4-piston calipers (front), Single 245mm disc with 2-piston caliper (rear)
Suspension Type:
ST4: Showa inverted telescopic fork; ST4S: Öhlins fully adjustable inverted telescopic fork
Front Suspension Travel:
Approx. 130 mm (ST4), 120 mm (ST4S Öhlins)
Rear Suspension Travel:
Approx. 130 mm (ST4), 130 mm (ST4S Öhlins)
Frame Construction:
Trellis frame
Instrumentation:
Analog tachometer and speedometer, LCD display for trip meter, odometer, fuel level, etc.
ABS System:
Bosch ABS available on ST4S-ABS models.
Connectivity Features:
None in the modern sense; focus is on mechanical and electrical components.
Desmodromic Actuation:
Unique Ducati system for positive valve opening and closing, reducing valve float.
Fuel Injection System:
Sophisticated Weber Marelli electronic fuel injection for precise fuel delivery.
Oil Change Interval:
Typically 7,500 miles or 12 months (Refer to specific service manual for exact intervals).
Desmo Service Interval:
Critical service usually every 7,500-15,000 miles (Refer to specific service manual).
Engine Oil Type:
Fully synthetic motorcycle oil, SAE 15W-50 or 20W-50 (e.g., Motul 300V, Castrol Power 1).
Engine Oil Capacity:
Approx. 3.5 liters (with filter change).
Coolant Type:
Ethylene glycol-based coolant, 50% mix with distilled water.
Clutch Fluid Type:
DOT 4 (Hydraulic clutch)
Gearbox Oil Type:
SAE 75W/90 or SAE 80W/90 API GL-4 or GL-5 (refer to manual for specific recommendation).
Desmodromic Valve Adjustment:
Requires specialized knowledge and tools; crucial for engine health. This parts catalog helps identify the correct components.
Electrical Gremlins:
As with many European bikes of this era, intermittent electrical issues can arise. Accurate part identification is key for replacement.
Fueling Components:
Potential issues with fuel pump, injectors, or regulator; parts catalog is essential.
Ducati Legacy:
Renowned for performance, Desmodromic valve actuation, and Italian design.
St Series Development:
Evolved from earlier Ducati sportbikes, adapting for sport touring capabilities.
St4 Introduction:
Launched to cater to riders seeking long-distance comfort without compromising Ducati's signature performance.
St4S Enhancements:
The ST4S featured the more powerful Testastretta engine and upgraded Öhlins suspension, bridging the gap to hyperbikes.
Manufacturing Origin:
Italy
Motorcycle Press Reviews:
Generally praised for performance, handling, and distinct Italian character, often noted for its strong engine and chassis.
Reliability Perception:
Can be high if meticulously maintained according to Ducati's standards, particularly the Desmo service. Parts availability is crucial.
