Kawasaki Z900 2023 vs. Kawasaki Z650 2021

Kawasaki Z900 2023

Kawasaki Z900 2023

Kawasaki Z650 2021

Kawasaki Z650 2021

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Overview - Kawasaki Z900 2023 vs Kawasaki Z650 2021

The Kawasaki Z900 2023 is a naked bike with a powerful engine and advanced rider assistance systems. Its in-line engine produces 125 HP of power and 98.6 Nm of torque, providing a thrilling riding experience. The fuel system is injection-based, ensuring efficient and smooth fuel delivery. With four cylinders and liquid cooling, the engine performs optimally and maintains a consistent temperature.

In terms of suspension, the Z900 2023 features an upside-down telescopic fork at the front and a swing arm with a monoshock at the rear. The suspension can be adjusted for preload and rebound, allowing riders to customize their riding experience. The double cradle steel frame provides a sturdy and stable platform for the bike.

Braking is handled by double disk brakes at the front with a diameter of 300 mm and four pistons, utilizing petal technology. This ensures excellent stopping power and control. The bike also comes equipped with advanced rider assistance systems, including ABS, riding modes, ride by wire, and traction control. These systems enhance safety and improve overall performance.

In terms of dimensions and weights, the Z900 2023 has a front tire width of 120 mm and a rear tire width of 180 mm, both with a diameter of 17 inches. The wheelbase is 1450 mm, providing stability and maneuverability. The seat height is 795 mm, accommodating riders of various heights. With a kerb weight of 212 kg (with ABS), the bike may feel slightly heavy compared to other models.

The Z900 2023 is equipped with LED daytime running lights, LED headlights, and a TFT display. These features enhance visibility and provide a modern and stylish look.

Kawasaki Z900 2023

Kawasaki Z900 2023

On the other hand, the Kawasaki Z650 2021 is a naked bike with a more accessible two-cylinder engine. It produces 68.2 HP of power and 65.7 Nm of torque, offering a smooth and enjoyable ride. The fuel system is also injection-based, ensuring efficient fuel delivery.

The Z650 2021 features a telescopic fork at the front and a swing arm with a monoshock at the rear for suspension. The rear suspension can be adjusted for preload. The steel frame, specifically a tubular frame, provides stability and durability.

Braking is handled by double disk brakes at the front with a diameter of 300 mm and double pistons, utilizing petal technology. The bike is equipped with ABS for added safety.

In terms of dimensions and weights, the Z650 2021 has a front tire width of 120 mm and a rear tire width of 160 mm, both with a diameter of 17 inches. The wheelbase is 1410 mm, slightly shorter than the Z900 2023. The seat height is 790 mm, accommodating riders of various heights. With a kerb weight of 187.1 kg (with ABS), the bike is relatively lightweight.

The Z650 2021 is also equipped with LED daytime running lights, LED headlights, and a TFT display. The display offers connectivity options, enhancing the overall riding experience.

Kawasaki Z650 2021

Kawasaki Z650 2021

In terms of strengths, the Z900 2023 offers light and natural handling with high stability. The engine provides a silky smooth power delivery with full pull from low revs. The chassis transparency and feedback are excellent, allowing riders to feel connected to the road. The seating position is comfortable and provides a feel-good factor. Additionally, the Z900 2023 is priced fairly, making it an attractive option.

On the other hand, the Z650 2021 has its strengths in its accessible two-cylinder engine, compact dimensions, and low seat height. The chassis is stable, and the bike has a grown-up look. The TFT display with connectivity adds a modern touch to the bike.

In terms of weaknesses, the Z900 2023 has a relatively cumbersome menu operation and lacks slope-dependent assistance systems. Additionally, the bike has a high weight, which may affect maneuverability for some riders.

The Z650 2021, on the other hand, may be uncomfortable for tall riders due to its compact dimensions. The adrenaline level in the saddle may also be lower compared to its competition.

Overall, both the Kawasaki Z900 2023 and the Kawasaki Z650 2021 offer unique features and strengths. The Z900 2023 is more powerful and comes with advanced rider assistance systems, while the Z650 2021 is more accessible and has a lower seat height. Riders should consider their preferences and riding style when choosing between the two models.

Technical Specifications Kawasaki Z900 2023 compared to Kawasaki Z650 2021

Kawasaki Z900 2023
Kawasaki Z650 2021

Engine and Drive Train

Engine typeEngine typeIn lineEngine typeIn line
BoreBore73.4 mmBore83 mm
StrokeStroke56 mmStroke60 mm
Engine powerEngine power125 HPEngine power68.2 HP
Rpm at Max. PowerRpm at Max. Power9,500 rpmRpm at Max. Power8,000 rpm
TorqueTorque98.6 NmTorque65.7 Nm
Rpm at TorqueRpm at Torque7,700 rpmRpm at Torque7,000 rpm
Compression RatioCompression Ratio11.8 Compression Ratio10.8
Fuel systemFuel systemInjectionFuel systemInjection
Throttle BoreThrottle Bore36 mmThrottle Bore36 mm
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
IgnitionIgnitionDigitalIgnitionDigital
TransmissionTransmissionChainTransmissionChain
Transmission TypeTransmission TypeGearshiftTransmission TypeGearshift
Number of gearsNumber of gears6Number of gears6
CylindersCylinders4Cylinders2
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesDOHCValvesDOHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement948 ccmDisplacement649 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionTelescopic fork
DiameterDiameter41 mmDiameter41 mm
TravelTravel120 mmTravel125 mm

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock
Shock mountShock mountDeflectionShock mountDeflection
TravelTravel140 mmTravel130 mm
AdjustmentAdjustmentPreload, ReboundAdjustmentPreload

Chassis

FrameFrameSteelFrameSteel
Frame typeFrame typeDouble cradleFrame typeTubular
RakeRake65 degreeRake65.5 degree
TrailTrail105 mmTrail100 mm

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter300 mmDiameter300 mm
PistonPistonFour pistonsPistonDouble piston
Shock mountShock mountFixed caliperShock mountSemi-Schwimmsattel
TechnologyTechnologyPetalTechnologyPetal

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter250 mmDiameter220 mm
PistonPistonSingle pistonPistonSingle piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Ride by Wire, Traction controlAdvanced Rider Assistance SystemsABS

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 width180 mmRear tyre width160 mm
Rear tyre heightRear tyre height55 %Rear tyre height60 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
LengthLength2,070 mmLength2,055 mm
WheelbaseWheelbase1,450 mmWheelbase1,410 mm
Seat HeightSeat Height795 mmSeat Height790 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)212 kgKerb Weight (with ABS)187.1 kg
License compliancyLicense compliancyALicense compliancyA

Equipment

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

Pros and Cons in comparison

Pros and Cons in comparison

Kawasaki Z900 2023

Kawasaki Z900 2023

The Kawasaki Z900 may not be up to scratch when it comes to modern, lean angle-dependent electronic features, but it's relatively cheap and you shouldn't underestimate the fan base of the good old inline four - the Z900 is one of the cheapest ways to own such a great engine with just under a litre of displacement in a sporty naked bike! The higher weight is noticeable, but not massively annoying, because the handling and stability are quite alright. In terms of "outdated" electronics, the most annoying thing is the missing shift assistant, which is not even available as an option. Overall, however, the Z900 is a great naked bike with a great price-performance ratio.

Light and natural handling with high stability

silky engine with full pull from low revs

high chassis transparency, great feedback

seating position with feel-good factor

absolutely fair price.

Relatively cumbersome operation of the menu

no slope-dependent assistance systems

high weight

Kawasaki Z650 2021

Kawasaki Z650 2021

Even in 2021, the Kawasaki Z 650 stands for easy riding with great looks and good equipment. Both seat height and engine are very accessible and will give both experienced riders and newcomers a lot of pleasure. If you are looking for an honest naked bike without any big surprises, this is the bike for you. Due to its compact dimensions, however, you should try it out before buying and perhaps go for the raised seat.

accessible two-cylinder

compact dimensions

low seat height

stable chassis

TFT display with connectivity

grown-up look

Probably uncomfortable for tall riders

adrenaline level in the saddle lower than with the competition

Price Comparison Avarage Market Price Kawasaki Z900 vs Kawasaki Z650

There are a few key differences between a Kawasaki Z900 2023 and a Kawasaki Z650 2021. In terms of price, the actual average price of a Kawasaki Z900 2023 is about 53% higher. Compared to Kawasaki Z650 2021 there are more Kawasaki Z900 2023 bikes available on the 1000PS.de Marketplace, specifically 187 compared to 25. It takes less time to sell a Kawasaki Z650 with 106 days compared to 122 days for the Kawasaki Z900. Since model year 2017 1000PS.de editors have written 46 reviews for the Kawasaki Z900 and 31 reviews for the Kawasaki Z650 since model year 2017. The first review for the Kawasaki Z900 was published on 11/11/2016 and now has more than 93,200 views. This compares to more than 25,000 views for the first review on Kawasaki Z650 published on 08/11/2016.

Price Kawasaki Z900

Model year
Current average market prices

Price Kawasaki Z650

Model year
Current average market prices

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