DUCATI

Ducati Streetfighter V4 S: an untamable 214hp machine

The Ducati Streetfighter V4 S—whose technical specifications can be found at this link—is the prime example of a truly special segment: hypersport naked bikes derived directly from the brand's superbikes. With 214 hp at 13,500 rpm, it would be an untamable machine were it not for its electronics—much like the Panigale V4 S, the model upon which it is based. It also features exclusive internal components, such as the Superleggera’s gear shift drum and the Panigale V4 R’s alternator and oil pump; truly impressive details.

The new naked sports bike boasts 6 more horsepower and weighs 4 kg less than its predecessor. Its dry weight of 189 kg yields a power-to-weight ratio of 1.13 kg/hp, worthy of the best sports bikes in history.

It is powered by the 90° Desmosedici Stradale V4 engine—featuring the signature desmodromic intake and exhaust systems and a counter-rotating crankshaft. Displacing 1,103 cc and utilizing the characteristic "Twin Pulse" firing order, it is a four-cylinder engine that delivers the feel and sound of a twin.

A major achievement of this powertrain is its compliance with Euro 5+ emission standards, offering a 6% reduction in fuel consumption and a 1 kg weight saving on the engine block itself—though that weight reduction is subsequently offset by the catalytic converters. It also features new camshafts and incorporates the VIS technology from the 2025 Panigale V4. This is a variable intake system that adjusts the length of the intake runners between 25 mm and 80 mm, improving throttle response and torque delivery, and ultimately boosting peak power.

The exhaust system has been further restricted by new regulations, so Ducati developed a new valve to make it quieter at low RPM and at idle. Engine cooling has been improved by 7%, as has hot air dissipation, with insulated inner panels preventing heat from reaching the rider. The final drive ratio has been shortened compared to the Panigale, aiming for a more direct riding experience and making it easier to pull wheelies, depending on the selected riding mode.

If the engine is impressive, the chassis is equally so. The aluminum frame utilizes the engine as a structural member. The swingarm now features a symmetrical, hollow, double-sided design, which improves stability when exiting corners, responds better to acceleration demands, and is lighter. Lateral rigidity has been reduced by 43%. The wheels weigh nearly a kilogram less in total. The suspension combines the best of Öhlins and Ducati technology; the system is dubbed Ducati Electronic Suspension (DES) 3.0 and integrates the latest Öhlins Smart-EC 3.0 software. A pressurized NIX30 front fork with 125 mm of travel is paired with a TTX36 rear shock offering 130 mm of travel. In terms of braking, it features 330mm semi-floating discs with Brembo Hypure calipers, all combined with eCBS technology, which electronically manages the combined braking system.

You might think a motorcycle like the Streetfighter V4 S has a limited scope of use—that its power exceeds what is usable on the street—but the truth is that it breaks the mold; it is incredible to be able to ride with this level of safety while still enjoying over 200 hp.

One of its key features is electronic adjustability, allowing you to tailor settings to the situation and terrain. Sport mode—which delivers essentially the same power as Race mode—softens the suspension, yet the engine roars at mid-range RPMs like few other bikes on the market with a stock exhaust, and its acceleration is ferocious. That said, you can also use Race mode on the road—on well-paved surfaces and familiar curves—for a firmer, more direct ride if you’re feeling adventurous.

In any case, whichever mode you choose, you’ll have more than enough power for riding outside the racetrack. You encounter raw force almost immediately without needing to rev the engine hard—a sensation that becomes truly spectacular in the mid-range. Between corners, you barely have time to do anything but roll the throttle on and off, playing with a gearbox where the quickshifter executes gear changes at lightning speed. It takes confidence to try and make the most of everything a naked sports bike has to offer.

Despite its low weight, it doesn't feel as light as a supersport bike; the inertia of the engine's internal components, the rigidity required to handle the power, and the firm suspension demand decisive inputs at low speeds. If you ride decisively, you’ll find a bike that is highly agile during weight transitions—even with that massive 200mm rear tire—and offers impeccable stability and precision as speed and cornering radius increase.

The wide handlebars provide plenty of control, but they also amplify sensitivity if you lean too far forward. As the road surface deteriorates, the Streetfighter begins to feel out of its element. Bumps and irregularities clash with the suspension settings, and the lack of grip forces the rider-assist systems to intervene more frequently. Although it features flat handlebars, the riding position is sporty and forward-leaning—a sensation accentuated by the bike's stiff response to bumps.

You might think a motorcycle like this doesn't make much sense for the road, especially given the price, but a brief ride on familiar territory is all it takes to realize you are in a different league compared to any "standard" naked bike.

 

by: Autonews