Aprilia RS 660 2021 vs. KTM 690 Duke 2014

Aprilia RS 660 2021

Aprilia RS 660 2021

KTM 690 Duke 2014

KTM 690 Duke 2014

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Overview - Aprilia RS 660 2021 vs KTM 690 Duke 2014

Aprilia RS 660 2021

Aprilia RS 660 2021

KTM 690 Duke 2014

KTM 690 Duke 2014

Technical Specifications Aprilia RS 660 2021 compared to KTM 690 Duke 2014

Aprilia RS 660 2021
KTM 690 Duke 2014

Engine and Drive Train

BoreBore81 mmBore102 mm
StrokeStroke63.93 mmStroke84.5 mm
Engine powerEngine power100 HPEngine power68 HP
Rpm at Max. PowerRpm at Max. Power10,500 rpmRpm at Max. Power7,500 rpm
TorqueTorque67 NmTorque70 Nm
Rpm at TorqueRpm at Torque8,500 rpmRpm at Torque5,500 rpm
Compression RatioCompression Ratio13.5 Compression Ratio12.6
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bath, AntihoppingClutch TypeAntihopping
TransmissionTransmissionChainTransmissionChain
CylindersCylinders2Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
ValvesValvesDOHCValvesRocker arm, OHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement659 ccmDisplacement690 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
BrandBrandKayabaBrandWP

Chassis

FrameFrameAluminiumFrameChromium-molybdenum
Frame typeFrame typeLoad-bearing engineFrame typeTubular

Brakes Front

PistonPistonFour pistonsPistonFour pistons
TechnologyTechnologyradialTechnologyradial
BrandBrandBremboBrandBrembo

Brakes Rear

TypeTypeDiscTypeDisc
PistonPistonDouble pistonPistonSingle piston
BrandBrandBremboBrandBrembo

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Launch-Control, Ride by Wire, Quickshifter, Traction control, Anti-wheelieAdvanced Rider Assistance SystemsRide by Wire

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
WheelbaseWheelbase1,370 mmWheelbase1,466 mm
Seat HeightSeat Height820 mmSeat Height835 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)183 kgKerb Weight (with ABS)149.5 kg
Fuel Tank CapacityFuel Tank Capacity15 lFuel Tank Capacity14 l
License compliancyLicense compliancyALicense compliancyA

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

KTM 690 Duke 2014

KTM 690 Duke 2014

More than a decade after its launch, the KTM 690 Duke remains a fascinating bike with its own character. The attempt to turn the rebellious Duke into a bike with more mass appeal has proven to be a successful strategy. The combination of an outstanding LC4 engine, direct handling and good value for money continues to make it an attractive option for riders looking for something special. Although newer twin-cylinder models are superior in terms of smooth running and comfort, the 690 Duke offers an immediacy and character that only a large single-cylinder can deliver. As a used motorbike, it has proven to be surprisingly stable in value and durable - provided you pay attention to regular maintenance.

Outstanding LC4 single-cylinder engine with a unique character

Outstanding power-to-weight ratio (2.29 kg/HP)

Direct, precise handling in all riding situations

Good value stability and surprising longevity

Disengageable ABS and effective anti-hopping clutch

Low fuel consumption (3.5-4 litres/100 km)

Suspension without adjustability with limited reserves

Mediocre shifting precision, especially at higher mileages

Alternator as a potential weak point at higher mileages

Clutch play needs to be adjusted more frequently

"Whipping" chain at very low speeds in the partial load range

Slight vibrations at higher speeds (especially before 2016)

Price Comparison Avarage Market Price Aprilia RS 660 vs KTM 690 Duke

Price Aprilia RS 660

Model year
Current average market prices

Price KTM 690 Duke

Model year
Current average market prices

Alternative Comparisons

1000PS Partner

ChigeeContinental MotorradreifenMotorex AGcalimoto GmbH