Kawasaki Z900 RS 2018 vs. Kawasaki Z650 2025

Kawasaki Z900 RS 2018

Kawasaki Z900 RS 2018

Kawasaki Z650 2025

Kawasaki Z650 2025

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Technical Specifications Kawasaki Z900 RS 2018 compared to Kawasaki Z650 2025

Kawasaki Z900 RS 2018
Kawasaki Z650 2025
Kawasaki Z900 RS 2018
Kawasaki Z900 RS 2018
Kawasaki Z650 2025
Kawasaki Z650 2025

Engine and Drive Train

Engine typeEngine typeIn lineEngine typeIn line
BoreBore73.4 mmBore83 mm
StrokeStroke56 mmStroke60 mm
Engine powerEngine power111 HPEngine power68 HP
Rpm at Max. PowerRpm at Max. Power8,500 rpmRpm at Max. Power8,000 rpm
TorqueTorque98.6 NmTorque65.7 Nm
Rpm at TorqueRpm at Torque6,500 rpmRpm at Torque7,000 rpm
Compression RatioCompression Ratio10.8 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
TravelTravel140 mmTravel130 mm
AdjustmentAdjustmentPreload, ReboundAdjustmentPreload

Chassis

FrameFrameSteelFrameSteel
Frame typeFrame typeTubularFrame typeTubular
RakeRake65 degreeRake65.5 degree
TrailTrail98 mmTrail100 mm

Brakes Front

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

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter250 mmDiameter220 mm
PistonPistonSingle pistonPistonSingle piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Ride by Wire, Traction controlAdvanced Rider Assistance SystemsABS, 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 width180 mmRear tyre width160 mm
Rear tyre heightRear tyre height55 %Rear tyre height60 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
LengthLength2,100 mmLength2,055 mm
WheelbaseWheelbase1,470 mmWheelbase1,410 mm
Seat HeightSeat Height835 mmSeat Height790 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)215 kgKerb Weight (with ABS)187.1 kg
Fuel Tank CapacityFuel Tank Capacity17 lFuel Tank Capacity15 l
License compliancyLicense compliancyALicense compliancyA

Pros and Cons in comparison

Pros and Cons in comparison

Kawasaki Z900 RS 2018

Kawasaki Z900 RS 2018

Its four-cylinder is silky smooth while delivering enough power to make you grin under your helmet. It is also very easy to move, which should make it a great commuter bike in everyday life and serve as an iconic fun bike at the weekend. The looks find the perfect straddle of classic design and modern details to form a coherent retro package that is also a worthy tribute to Kawasaki history. It's a great naked bike with a snazzy look.

Powerful and smooth engine

good looks

comfortable seating position

easy to ride

balanced handling. Not nervous and not ponderous

no shift assistant

heavier than other retro bikes in this class

seat a little too soft on long tours

no wind protection

Kawasaki Z650 2025

Kawasaki Z650 2025

The Kawasaki Z 650 is probably the most docile motorbike in the naked bike segment. And that is to be understood in an absolutely positive way - as long as you are not particularly tall and heavy. It is slim, light, agile and accessible. All the controls, but also the engine, do not overwhelm. If you are looking for spectacular performance, you should go for the Z 900, but if you are looking for a nimble and easy-to-ride motorbike, you will be satisfied.

Very accessible handling

Very compact and easy to manoeuvre

Motorcycle appears light and compact

Gives small riders a lot of confidence

Adjustable levers

Not enough space on the bike for tall riders

bike looks a class smaller than 650cc overall

engine looks a bit tame

very defensive seating position

handlebars too narrow and cranked too much for a naked bike.

Price Comparison Avarage Market Price Kawasaki Z900 RS vs Kawasaki Z650

Price Kawasaki Z900 RS

Model year
Current average market prices

Price Kawasaki Z650

Model year
Current average market prices

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