Aprilia RS 660 2021 vs. Kawasaki Ninja 650 2023

Aprilia RS 660 2021

Aprilia RS 660 2021

Kawasaki Ninja 650 2023

Kawasaki Ninja 650 2023

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Overview - Aprilia RS 660 2021 vs Kawasaki Ninja 650 2023

The Aprilia RS 660 2021 and the Kawasaki Ninja 650 2023 are both supersport motorcycles that offer unique features and strengths.

Starting with the Aprilia RS 660 2021, it boasts a powerful engine with 100 HP and 67 Nm of torque. The engine is an in-line crankpin offset type with a displacement of 659 ccm. This gives the RS 660 impressive acceleration and top speed capabilities. Additionally, the RS 660 features an extensive electronics package, including ABS, riding modes, launch control, ride by wire, quickshifter, traction control, and anti-wheelie assistance. These advanced rider assistance systems enhance the overall riding experience and provide added safety.

In terms of the chassis, the RS 660 utilizes an aluminum frame, which contributes to its low weight and sporty handling. The front suspension consists of an upside-down telescopic fork with a diameter of 41 mm, while the rear suspension is a swing arm with a monoshock that offers preload and rebound adjustment. The combination of the chassis and suspension provides excellent stability and control. The RS 660 also features double disk brakes with a diameter of 320 mm and radial technology on the front, ensuring reliable and responsive braking performance.

Aprilia RS 660 2021

Aprilia RS 660 2021

Other notable features of the RS 660 include LED headlights for improved visibility and a sporty look, as well as a 15-liter fuel tank capacity for extended riding range. The front and rear tires have widths of 120 mm and 180 mm, respectively, with both having a diameter of 17 inches. The wheelbase measures 1370 mm, and the seat height is set at 820 mm. The RS 660 has a kerb weight of 183 kg, further enhancing its agility and maneuverability.

On the other hand, the Kawasaki Ninja 650 2023 offers a different set of strengths. It is designed to be suitable for touring and provides a comfortable riding experience. The engine produces 68.2 HP and 65.7 Nm of torque, making it less powerful than the RS 660 but still capable of delivering enjoyable performance. The engine is also an in-line type with a displacement of 649 ccm.

The Ninja 650 features a safety package that includes ABS and traction control, ensuring stability and control in various road conditions. It also boasts an ergonomically versatile design, allowing riders to find a comfortable riding position. The chassis is made of steel and has a tubular frame type. The front suspension consists of a telescopic fork with a diameter of 41 mm, while the rear suspension is a swing arm with a monoshock that offers preload adjustment. The chassis and suspension provide a balance between comfort and handling.

The Ninja 650 is equipped with double disk brakes with a diameter of 300 mm and petal technology on the front, providing reliable stopping power. It also features front and rear tires with widths of 120 mm and 160 mm, respectively, and both have a diameter of 17 inches. The wheelbase measures 1410 mm, and the seat height is set at 790 mm. The Ninja 650 has a kerb weight of 193 kg, which is slightly heavier than the RS 660.

Kawasaki Ninja 650 2023

Kawasaki Ninja 650 2023

Additional features of the Ninja 650 include LED daytime running lights, LED headlights, and a TFT display for improved visibility and a modern look.

In terms of weaknesses, the Aprilia RS 660 2021 has a poorly readable rev counter, which can be a minor inconvenience for some riders. On the other hand, the Kawasaki Ninja 650 2023 has average chassis and brake performance, which may not offer the same level of sportiness as the RS 660. Additionally, adjusting the rear shock absorber on the Ninja 650 can be laborious.

Overall, the Aprilia RS 660 2021 excels in terms of power, electronics package, sporty chassis, low weight, and sporty look. On the other hand, the Kawasaki Ninja 650 2023 shines in its suitability for touring, comfortable riding experience, safety package, accessibility, ergonomically versatile design, and typical Ninja aesthetics.

Technical Specifications Aprilia RS 660 2021 compared to Kawasaki Ninja 650 2023

Aprilia RS 660 2021
Kawasaki Ninja 650 2023

Engine and Drive Train

Engine typeEngine typeIn line crankpin offsetEngine typeIn line
BoreBore81 mmBore83 mm
StrokeStroke63.93 mmStroke60 mm
Engine powerEngine power100 HPEngine power68.2 HP
Rpm at Max. PowerRpm at Max. Power10,500 rpmRpm at Max. Power8,000 rpm
TorqueTorque67 NmTorque65.7 Nm
Rpm at TorqueRpm at Torque8,500 rpmRpm at Torque7,000 rpm
Compression RatioCompression Ratio13.5 Compression Ratio10.8
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bath, AntihoppingClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Transmission TypeTransmission TypeGearshiftTransmission TypeGearshift
Number of gearsNumber of gears6Number of gears6
CylindersCylinders2Cylinders2
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesDOHCValvesDOHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement659 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
TravelTravel130 mmTravel130 mm
AdjustmentAdjustmentPreload, ReboundAdjustmentPreload

Chassis

FrameFrameAluminiumFrameSteel
Frame typeFrame typeLoad-bearing engineFrame typeTubular
RakeRake65.9 degreeRake65.5 degree
TrailTrail104.6 mmTrail100 mm

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter320 mmDiameter300 mm
PistonPistonFour pistonsPistonDouble piston
TechnologyTechnologyradialTechnologyPetal

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter220 mmDiameter220 mm
PistonPistonDouble pistonPistonSingle piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Launch-Control, Ride by Wire, Quickshifter, Traction control, Anti-wheelieAdvanced 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
LengthLength1,995 mmLength2,055 mm
WidthWidth745 mmWidth740 mm
WheelbaseWheelbase1,370 mmWheelbase1,410 mm
Seat HeightSeat Height820 mmSeat Height790 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)183 kgKerb Weight (with ABS)193 kg
Fuel Tank CapacityFuel Tank Capacity15 lFuel Tank Capacity15 l
License compliancyLicense compliancyALicense compliancyA

Equipment

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

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia RS 660 2021

Aprilia RS 660 2021

In 2021, the Aprilia RS 660 can be seen as the last true 600cc supersport, because with its sporty seating position and high-quality chassis components, it hits the sweet spot between suitability for everyday use and trackday potential. Thanks to the comprehensive electronics package, nothing is left to be desired on the road or on the track - and you can't complain about the powerful two-cylinder anyway. A great package for all those for whom 200+ hp superbikes are too much for everyday use.

powerful engine

extensive electronics package

sporty chassis

nice sound

low weight

sporty look

poorly readable rev counter

Kawasaki Ninja 650 2023

Kawasaki Ninja 650 2023

To judge the Kawasaki Ninja 650 purely on its paper form would be a serious mistake. The two-day test showed once again that performance data carries more weight at the pub table than in the wild. Kawa's sports tourer does exactly what it is supposed to and, thanks to the constant revision and the new features added for 2023, is still an enrichment for the class. Only hobby racers should be warned, as the name Ninja still stirs up a certain expectation that the 650 does not fully meet.

suitable for touring

comfortable

safety package

very accessible

ergonomically versatile

typical Ninja look

Chassis and brakes only average

adjustment of the rear shock absorber laborious

Price Comparison Avarage Market Price Aprilia RS 660 vs Kawasaki Ninja 650

There are a few key differences between a Aprilia RS 660 2021 and a Kawasaki Ninja 650 2023. In terms of price, the actual average price of a Aprilia RS 660 2021 is about 33% higher. Compared to Kawasaki Ninja 650 2023 there are less Aprilia RS 660 2021 bikes available on the 1000PS.de Marketplace, specifically 16 compared to 112. It takes less time to sell a Aprilia RS 660 with 101 days compared to 137 days for a Kawasaki Ninja 650. Since model year 2020 1000PS.de editors have written 14 reviews for the Aprilia RS 660 and 20 reviews for the Kawasaki Ninja 650 since model year 2017. The first review for the Aprilia RS 660 was published on 11/5/2019 and now has more than 52,500 views. This compares to more than 79,600 views for the first review on Kawasaki Ninja 650 published on 10/4/2016.

Price Aprilia RS 660

Model year
Current average market prices

Price Kawasaki Ninja 650

Model year
Current average market prices

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