Ducati ST4S 996 (2004-2005): A Sport-Touring Contender That Still Thrills

Introduction

The Ducati ST4S 996 occupies a unique space in motorcycling history—a machine that refuses to be pigeonholed. Born from Ducati’s relentless pursuit of blending performance with practicality, this 2004-2005 sport-touring model combines the soul of a superbike with the sensibility of a grand tourer. Even today, its charisma remains undiminished, offering a riding experience that’s as visceral as it is refined. Having spent time with this Italian marvel, it’s clear why it still commands respect among enthusiasts who crave duality: the ability to carve canyons by day and devour highways by night.

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Engine & Performance: The Heart of a Superbike

At the core of the ST4S lies Ducati’s legendary 996 cc liquid-cooled L-twin engine—a powerplant borrowed from the iconic 916 series. This isn’t just any V-twin; it’s a Desmodromic masterpiece, where valves are mechanically closed instead of relying on springs. The result? A razor-sharp response that thrives at high RPMs.

• Power Delivery: The engine produces 117 HP (85.4 kW) @ 8,750 RPM and 98 Nm (72.3 lb-ft) @ 7,000 RPM in its 2004 iteration, with later models showing slight torque adjustments. From the moment you twist the throttle, there’s a linear surge of power that builds into a frenetic crescendo past 6,000 RPM. The characteristic Ducati growl evolves into a howl as the tacho needle swings toward redline—a symphony for adrenaline seekers.
• Fuel Injection: Equipped with Marelli’s 50 mm throttle bodies, the fuel injection system delivers crisp throttle response. While older systems can feel abrupt, the ST4S strikes a balance between urgency and controllability, even in low-speed maneuvers.
• Gearing: The 6-speed transmission slots gears with a satisfying mechanical click. Tall gearing means relaxed highway cruising at 120 km/h (75 mph) with RPMs hovering around 4,500—a testament to its touring DNA.

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Chassis & Handling: Precision Meets Poise

Ducati’s tubular steel trellis frame is a work of art—stiff, lightweight, and dripping with Italian engineering ethos. Paired with premium suspension components, the ST4S dances through corners while remaining unflappable on uneven roads.

• Front Suspension: The 43 mm Showa upside-down fork (with titanium nitride coating for reduced friction) offers full adjustability. Dial in preload and damping to suit your riding style—whether you’re attacking switchbacks or soaking up interstate expansion joints.
• Rear Suspension: An Öhlins monoshock with remote preload adjustment elevates the bike’s composure. The aluminum swingarm ensures minimal flex, translating rider inputs into razor-sharp direction changes.
• Brakes: Dual 320 mm front discs gripped by Brembo calipers provide eye-widening stopping power. The inclusion of ABS (a rarity in early-2000s motorcycles) adds confidence when braking hard on wet roads or gravel-strewn bends.

With a 24-degree rake and 1430 mm wheelbase, the ST4S strikes a near-perfect balance between agility and stability. It leans into corners eagerly, yet never feels twitchy mid-corner.

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Design & Ergonomics: Form Follows Function

The ST4S’s design is quintessentially Ducati—aggressive lines, a muscular fuel tank, and a single-sided swingarm that exposes the rear wheel like jewelry. Color options like Rosso Ducati red and Metallic Dark Grey ensure it stands out in a sea of bland commuters.

• Adjustability: Ducati prioritized customization here. The height-adjustable handlebars and reach-adjustable levers accommodate riders of all sizes. At 820 mm (32.3 inches), the seat height is accessible for shorter riders, while the reshaped 2004 seat reduces sliding during hard braking.
• Wind Protection: The half-fairing deflects wind effectively, though taller riders might crave a larger screen for marathon rides.
• Weight: At 212 kg (467 lbs) wet, the ST4S isn’t light, but its low center of gravity masks the heft. Flicking it through hairpins feels intuitive, not laborious.

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Riding Experience: A Dual Personality

The Sportbike Side

Fire up the engine, and the L-twin’s rumble sends vibrations through the handlebars—a tactile reminder of the machinery at your disposal. Roll onto the throttle, and the ST4S accelerates with a ferocity that belies its touring badge. The torque curve is meaty between 4,000–8,000 RPM, making overtakes a split-second affair. On twisty backroads, the suspension keeps the bike planted, allowing you to carry ludicrous corner speeds.

The Touring Side

Ride for three hours, and you’ll appreciate the thoughtful ergonomics. The slight forward lean keeps wrists comfortable, while the seat’s foam density strikes a balance between support and plushness. The 21-liter fuel tank (5.55 gallons) grants a 350–400 km (217–248 mi) range, depending on throttle discipline.

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Competition: How Does It Stack Up?

In the early 2000s sport-touring arena, the ST4S faced formidable rivals:

1. Honda VFR800 Interceptor
2. Smoother V4 engine with VTEC.
3. More relaxed ergonomics but less character.

4. Lacks the Ducati’s raw edge and premium suspension.

5. Yamaha FJR1300

6. A powerhouse with 145 HP but weighs 289 kg (637 lbs).

7. Better for two-up touring but feels portly in corners.

8. BMW R 1150 RT

9. Telelever front suspension excels on rough roads.
10. Boxer engine vibes can’t match the Ducati’s drama.

The ST4S carves its niche by offering 90% of a superbike’s thrill with 80% of a tourer’s comfort. It’s the choice for riders who refuse to compromise.

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Maintenance: Keeping the Italian Legend Alive

Owning a Ducati is a commitment—a labor of love. Here’s what ST4S owners should prioritize:

1. Desmodromic Valve Service
2. Required every 12,000 km (7,500 mi).
3. Complex adjustment process; best left to Ducati specialists.

4. MOTOPARTS.store Recommendation: Stock up on OEM shim kits and gaskets.

5. Chain & Sprockets

6. The 15/38 sprocket setup favors acceleration. Replace chains (102 links) at the first sign of stretch.

7. Upgrade to an X-ring chain for longevity.

8. Fluids

9. Engine Oil: Use SAE 10W-40 full synthetic (3.4 liters with filter).
10. Coolant: Replace every 2 years with ethylene glycol-based fluid.

11. Brake Fluid: DOT 4; flush annually to maintain ABS performance.

12. Tire Pressures

13. Front: 2.1–2.5 bar (30–36 psi)

14. Rear: 2.2–2.9 bar (32–42 psi)

15. Common Upgrades

16. Aftermarket exhausts (Termignoni or Arrow) to unleash the L-twin’s full voice.
17. Gel seat pads or heated grips for winter touring.

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Final Thoughts

The Ducati ST4S 996 isn’t just a motorcycle—it’s a statement. It proves that practicality needn’t come at the expense of passion. Two decades on, its blend of track-ready performance and cross-country comfort remains unmatched. Whether you’re a collector or a daily rider, this Ducati deserves a spot in your garage. And when it’s time for upgrades or maintenance, remember: MOTOPARTS.store has the gear to keep your ST4S thriving.

Ride hard, ride far, and let the Ducati’s twin-cylinder heartbeat remind you why we chase horizons.

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Specifications sheet

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