Aprilia RS 660 Factory 2026 vs. KTM 990 RC R 2026

Aprilia RS 660 Factory 2026

Aprilia RS 660 Factory 2026

KTM 990 RC R 2026

KTM 990 RC R 2026

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Technical Specifications Aprilia RS 660 Factory 2026 compared to KTM 990 RC R 2026

Aprilia RS 660 Factory 2026
KTM 990 RC R 2026

Engine and Drive Train

Engine typeEngine typeIn line crankpin offsetEngine typeV
BoreBore81 mmBore92.5 mm
StrokeStroke63.93 mmStroke70.4 mm
Engine powerEngine power105 HPEngine power130 HP
Rpm at Max. PowerRpm at Max. Power10,400 rpmRpm at Max. Power9,500 rpm
TorqueTorque70 NmTorque103 Nm
Rpm at TorqueRpm at Torque8,400 rpmRpm at Torque6,750 rpm
Compression RatioCompression Ratio13.5 Compression Ratio13.5
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bath, Antihopping, Clutch systemsClutch TypeMultiplate in oil-bath, Antihopping, Clutch systems
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 ccmDisplacement947 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
BrandBrandÖhlinsBrandWP
DiameterDiameter41 mmDiameter48 mm
TravelTravel120 mmTravel147 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentCompression, Preload, Rebound

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock
BrandBrandÖhlinsBrandWP
TravelTravel130 mmTravel134 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentCompression, Preload, Rebound
MaterialMaterialAluminiumMaterialAluminium

Chassis

FrameFrameAluminiumFrameChromium-molybdenum
Frame typeFrame typeLoad-bearing engineFrame typeTubular, Load-bearing engine

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter320 mmDiameter320 mm
PistonPistonFour pistonsPistonFour pistons
TechnologyTechnologyradialTechnologyradial
BrandBrandBremboBrandBrembo

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter220 mmDiameter240 mm
PistonPistonDouble pistonPistonSingle piston
BrandBrandBremboBrandBrembo

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Launch-Control, Ride by Wire, Quickshifter, Traction control, Anti-wheelie, Modern electronicsAdvanced Rider Assistance SystemsABS, Riding modes, Cornering ABS, Ride by Wire, Traction control, Modern electronics, Cornering 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 width180 mm
Rear tyre heightRear tyre height55 %Rear tyre height55 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
WheelbaseWheelbase1,370 mmWheelbase1,481 mm
Seat HeightSeat Height820 mmSeat Height845 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)183 kgKerb Weight (with ABS)195 kg
Fuel Tank CapacityFuel Tank Capacity15 lFuel Tank Capacity15.7 l
RangeRange312 kmRange334 km
Combined CO2 emissionsCombined CO2 emissions110 g/kmCombined CO2 emissions110 g/km
Combined fuel consumptionCombined fuel consumption4.8 l/100kmCombined fuel consumption4.7 l/100km
Euro NormEuro NormEuro 5+Euro NormEuro 5+

Equipment

EquipmentEquipmentLED-Headlights, LightingEquipmentConnectivity, LED-Headlights, TFT display, Modern electronics, Lighting

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia RS 660 Factory 2026

Aprilia RS 660 Factory 2026

Unfortunately, our editors did not test this model.

KTM 990 RC R 2026

KTM 990 RC R 2026

The KTM 990 RC R is a supersports bike that never denies its origins, but can do much more in everyday use than you might think at first glance. On the race track, it impresses with high stability, plenty of feedback, a powerful, easily controllable engine and ergonomics that also support ambitious riding. In everyday use, it scores points above all with its excellent touch display, integrated navigation and surprisingly good motorway qualities. At the same time, however, it demands a willingness to compromise from its rider: heat in city traffic, the sporty seating position and brakes that require a little more force make it clear that comfort has never been the top priority here. But this is precisely where its appeal lies: the 990 RC R is not a sensible everyday motorbike, but an emotional supersports bike that makes even ordinary journeys special.

Very stable riding performance with lots of feedback

Powerful, easy-to-ride engine with a width usable power band

Good ergonomics for a sporty riding style on the road and race track

Powerful touch display in a wide cinema format

Integrated GPS with offline navigation as a real everyday bonus

Surprisingly confident and stable on the motorway

Well-functioning electronics and intuitive operation during the rider's journey

Noticeable heat build-up in city traffic and stop-and-go driving

Sporty seating position is tiring in the long term in everyday use

Brakes are easy to modulate, but require a little more manual force

Many interesting functions only available at extra cost

No automated lap timer despite GPS hardware available

Price Comparison Avarage Market Price Aprilia RS 660 Factory vs KTM 990 RC R

Price Aprilia RS 660 Factory

Model year
Current average market prices

Price KTM 990 RC R

Model year
Current average market prices

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