Ducati Streetfighter V4 S 2021 vs. Kawasaki Z900 2021

Ducati Streetfighter V4 S 2021

Ducati Streetfighter V4 S 2021

Kawasaki Z900 2021

Kawasaki Z900 2021

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Overview - Ducati Streetfighter V4 S 2021 vs Kawasaki Z900 2021

The Ducati Streetfighter V4 S 2021 is a naked bike that boasts impressive power and performance. With a V-type engine producing 208 HP and 123 Nm of torque, it is the most powerful naked bike ever. The fuel system is injection-based, and it features four cylinders and liquid cooling. The displacement is 1103 ccm.

In terms of suspension, the Streetfighter V4 S has an upside-down telescopic fork at the front with compression, preload, and rebound adjustment. The rear suspension consists of a single swing arm with a monoshock absorber, also adjustable for compression, preload, and rebound. The material used for the rear suspension is aluminum. The frame of the bike is made of aluminum and has a monocoque design.

Braking power is provided by double disk brakes at the front with a diameter of 330 mm and four pistons. The braking technology used is radial and monoblock. The bike is equipped with advanced rider assistance systems such as ABS, riding modes, dynamic suspension, cornering ABS, launch control, ride by wire, quickshifter, traction control, and anti-wheelie.

The dimensions and weights of the Streetfighter V4 S include a front tire width of 120 mm and a diameter of 17 inches, while the rear tire width is 200 mm and the diameter is 17 inches. The wheelbase measures 1488 mm, and the seat height is 845 mm. The bike has a kerb weight of 199 kg with ABS. Equipment includes LED headlights and a TFT display.

Ducati Streetfighter V4 S 2021

Ducati Streetfighter V4 S 2021

On the other hand, the Kawasaki Z900 2021 is also a naked bike with its own set of strengths. It features an in-line engine that produces 125.4 HP and 98.6 Nm of torque. Like the Ducati, it has a fuel injection system, four cylinders, and liquid cooling. However, the displacement is slightly lower at 948 ccm.

The Z900 has an upside-down telescopic fork at the front with preload and rebound adjustment. The rear suspension consists of a swing arm with a monoshock absorber, also adjustable for preload and rebound. The material used for the rear suspension is aluminum. The frame of the bike is made of steel and has a double cradle design.

Braking power is provided by double disk brakes at the front with a diameter of 300 mm and four pistons. The braking technology used is petal. The bike is equipped with ABS, riding modes, ride by wire, and traction control as advanced rider assistance systems.

The dimensions and weights of the Z900 include a front tire width of 120 mm and a diameter of 17 inches, while the rear tire width is 180 mm and the diameter is 17 inches. The wheelbase measures 1450 mm, and the seat height is 795 mm. The bike has a kerb weight of 210 kg with ABS. Equipment includes LED daytime running lights, LED headlights, and a TFT display.

In terms of strengths, the Ducati Streetfighter V4 S 2021 stands out for being the most powerful naked bike ever, with good ergonomics, superb electronically adjustable Öhlins suspension, and brute Brembo Stylema brakes. It also has a full electronics package and a handsome, distinctive look.

Kawasaki Z900 2021

Kawasaki Z900 2021

On the other hand, the Kawasaki Z900 2021 has strengths such as a powerful four-cylinder engine, intuitive handling, good equipment, aggressive looks, and value for money.

However, the Ducati Streetfighter V4 S 2021 does have some weaknesses. It is very expensive, and its exhaust sound can be loud. Additionally, its full power is only accessible in the upper rev range.

Similarly, the Kawasaki Z900 2021 also has weaknesses. It does not offer a quickshifter option, and its competitors have advanced electronic systems with a 6-axis IMU that put them ahead in terms of technology.

In conclusion, both the Ducati Streetfighter V4 S 2021 and the Kawasaki Z900 2021 have their own strengths and weaknesses. The Ducati offers unparalleled power and performance, while the Kawasaki provides good value for money and a powerful engine. Ultimately, the choice between the two will depend on the rider's preferences and priorities.

Technical Specifications Ducati Streetfighter V4 S 2021 compared to Kawasaki Z900 2021

Ducati Streetfighter V4 S 2021
Kawasaki Z900 2021

Engine and Drive Train

Engine typeEngine typeVEngine typeIn line
BoreBore81 mmBore73.4 mm
StrokeStroke53.5 mmStroke56 mm
Engine powerEngine power208 HPEngine power125.4 HP
Rpm at Max. PowerRpm at Max. Power13,000 rpmRpm at Max. Power9,500 rpm
TorqueTorque123 NmTorque98.6 Nm
Rpm at TorqueRpm at Torque9,500 rpmRpm at Torque7,700 rpm
Compression RatioCompression Ratio14 Compression Ratio11.8
Fuel systemFuel systemInjectionFuel systemInjection
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Transmission TypeTransmission TypeGearshiftTransmission TypeGearshift
Number of gearsNumber of gears6Number of gears6
CylindersCylinders4Cylinders4
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesDesmodromicValvesDOHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement1,103 ccmDisplacement948 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
DiameterDiameter43 mmDiameter41 mm
TravelTravel120 mmTravel120 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentPreload, Rebound

Suspension Rear

SuspensionSuspensionSingle swing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock
TravelTravel130 mmTravel140 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentPreload, Rebound
MaterialMaterialAluminiumMaterialAluminium

Chassis

FrameFrameAluminiumFrameSteel
Frame typeFrame typeMonocoqueFrame typeDouble cradle
RakeRake65.5 degreeRake65 degree
TrailTrail100 mmTrail105 mm

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter330 mmDiameter300 mm
PistonPistonFour pistonsPistonFour pistons
Shock mountShock mountSemi-SchwimmsattelShock mountFixed caliper
ActuationActuationHydraulicActuationHydraulic
TechnologyTechnologyradial, MonoblockTechnologyPetal

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter245 mmDiameter250 mm
PistonPistonSingle pistonPistonSingle piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Dynamic suspension, Cornering ABS, Launch-Control, Ride by Wire, Quickshifter, Traction control, Anti-wheelieAdvanced Rider Assistance SystemsABS, Riding modes, Ride by Wire, Traction control

Dimensions and Weights

Front tyre widthFront tyre width120 mmFront tyre width120 mm
Front tyre heightFront tyre height70 %Front tyre height70 %
Front tyre diameterFront tyre diameter17 inchFront tyre diameter17 inch
Rear tyre widthRear tyre width200 mmRear tyre width180 mm
Rear tyre heightRear tyre height60 %Rear tyre height55 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
WheelbaseWheelbase1,488 mmWheelbase1,450 mm
Seat HeightSeat Height845 mmSeat Height795 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)199 kgKerb Weight (with ABS)210 kg
License compliancyLicense compliancyALicense compliancyA
Stationary noiseStationary noise106 dBStationary noise97 dB

Equipment

EquipmentEquipmentLED-Headlights, TFT displayEquipmentLED daytime running lights, LED-Headlights, TFT display

Pros and Cons in comparison

Pros and Cons in comparison

Ducati Streetfighter V4 S 2021

Ducati Streetfighter V4 S 2021

The problem of the Streetfighter V4 S with Euro4 engine, namely no power in the lower rev range but explosion in the upper rev range, has been largely rectified with the update to Euro5. Although the disgusting 208 hp are still only available at 13,000 rpm, the SF V4 S now also works acceptably at lower revs. The electronic Öhlins suspension is at its best and the brute Brembo Stylema stoppers again celebrate the penchant for the racetrack. Ergonomics and handling are also basically good, but on the racetrack you would wish for lower handlebars because of the awesome power. A perfect poser bike that also works on the country road, and on the racetrack anyway. Only the too-loud sound should be curbed a little.

The most powerful naked bike ever

good ergonomics

superb, electronically adjustable Öhlins suspension

brute Brembo Stylema brakes

full electronics package

handsome, distinctive look.

very expensive

loud exhaust sound

full power only in the upper rev range

Kawasaki Z900 2021

Kawasaki Z900 2021

In terms of price-performance, the Kawasaki Z900 is hard to beat at the moment. With the perfectly tuned engine, the high-quality chassis components and the electronics added for 2020, this naked bike offers everything that sporty riders will be looking for. There is really nothing to complain about, except for the lack of a quickshifter option.

powerful four-cylinder

intuitive handling

good equipment

aggressive looks

value for money

No quickshifter option

competitors with 6-axis IMU electronically ahead.

Price Comparison Avarage Market Price Ducati Streetfighter V4 S vs Kawasaki Z900

There are a few key differences between a Ducati Streetfighter V4 S 2021 and a Kawasaki Z900 2021. In terms of price, the actual average price of a Ducati Streetfighter V4 S 2021 is about 154% higher. Compared to Kawasaki Z900 2021 there are less Ducati Streetfighter V4 S 2021 bikes available on the 1000PS.de Marketplace, specifically 10 compared to 33. It takes less time to sell a Ducati Streetfighter V4 S with 85 days compared to 107 days for a Kawasaki Z900. Since model year 2020 1000PS.de editors have written 17 reviews for the Ducati Streetfighter V4 S and 46 reviews for the Kawasaki Z900 since model year 2017. The first review for the Ducati Streetfighter V4 S was published on 26/03/2020 and now has more than 73,600 views. This compares to more than 93,200 views for the first review on Kawasaki Z900 published on 11/11/2016.

Price Ducati Streetfighter V4 S

Model year
Current average market prices

Price Kawasaki Z900

Model year
Current average market prices

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