KTM 990 RC R 2026 vs. Aprilia RS 660 Factory 2025

KTM 990 RC R 2026

KTM 990 RC R 2026

Aprilia RS 660 Factory 2025

Aprilia RS 660 Factory 2025

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Technical Specifications KTM 990 RC R 2026 compared to Aprilia RS 660 Factory 2025

KTM 990 RC R 2026
Aprilia RS 660 Factory 2025

Engine and Drive Train

Engine typeEngine typeVEngine typeIn line crankpin offset
BoreBore92.5 mmBore81 mm
StrokeStroke70.4 mmStroke63.93 mm
Engine powerEngine power130 HPEngine power105 HP
Rpm at Max. PowerRpm at Max. Power9,500 rpmRpm at Max. Power10,500 rpm
TorqueTorque103 NmTorque67 Nm
Rpm at TorqueRpm at Torque6,750 rpmRpm at Torque8,500 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
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
DisplacementDisplacement947 ccmDisplacement659 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
BrandBrandWPBrandÖhlins
DiameterDiameter48 mmDiameter41 mm
TravelTravel147 mmTravel120 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentCompression, Preload, Rebound

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock
BrandBrandWPBrandÖhlins
TravelTravel134 mmTravel130 mm
AdjustmentAdjustmentCompression, Preload, ReboundAdjustmentCompression, Preload, Rebound
MaterialMaterialAluminiumMaterialAluminium

Chassis

FrameFrameChromium-molybdenumFrameAluminium
Frame typeFrame typeTubular, Load-bearing engineFrame typeLoad-bearing engine

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter320 mmDiameter320 mm
PistonPistonFour pistonsPistonFour pistons
TechnologyTechnologyradialTechnologyradial
BrandBrandBremboBrandBrembo

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter240 mmDiameter220 mm
PistonPistonSingle pistonPistonDouble piston
BrandBrandBremboBrandBrembo

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Cornering ABS, Ride by Wire, Traction control, Modern electronics, Cornering traction controlAdvanced Rider Assistance SystemsABS, Riding modes, Launch-Control, Ride by Wire, Quickshifter, Traction control, Anti-wheelie

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
WheelbaseWheelbase1,481 mmWheelbase1,370 mm
Seat HeightSeat Height845 mmSeat Height820 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)195 kgKerb Weight (with ABS)183 kg
Fuel Tank CapacityFuel Tank Capacity15.7 lFuel Tank Capacity15 l

Equipment

EquipmentEquipmentConnectivity, LED-Headlights, TFT display, Modern electronics, LightingEquipmentLED-Headlights

Pros and Cons in comparison

Pros and Cons in comparison

KTM 990 RC R 2026

KTM 990 RC R 2026

The KTM 990 RC R is a supersports bike that never denies its heritage, yet is capable of far more in everyday use than one might expect at first glance. On the race track, it impresses with its high stability, plenty of feedback, a powerful, easily controllable engine and ergonomics that support even ambitious riding. In everyday use, it scores highly above all with its excellent touchscreen display, integrated navigation and surprisingly good motorway performance. At the same time, however, it demands a willingness to compromise from its rider: the heat in city traffic, the sporty riding position and brakes that require a fair bit of effort make it clear that comfort was never the top priority here. Yet that 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 feel special.

Very stable riding performance with plenty of feedback

Powerful, responsive engine with a wide usable power band

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

High-quality touchscreen in a wide cinema format

Integrated GPS with offline navigation – a real bonus for everyday use

Surprisingly composed and stable on the motorway

Reliable electronics and intuitive controls whilst riding

Noticeable build-up of heat in city traffic and stop-and-go conditions

Sporty seating position becomes tiring over time in everyday use

Brakes are easy to modulate, but require a slightly high level of hand force

Many interesting features are only available at extra cost

No automated lap timer despite the presence of GPS hardware

Aprilia RS 660 Factory 2025

Aprilia RS 660 Factory 2025

Unfortunately, our editors did not test this model.

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

Price KTM 990 RC R

Model year
Current average market prices

Price Aprilia RS 660 Factory

Model year
Current average market prices

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