ChigeeMotorex AGContinental Motorradreifencalimoto GmbH

KTM 125 Duke 2021 vs. Aprilia RX 125 2018

KTM 125 Duke 2021

KTM 125 Duke 2021

Aprilia RX 125 2018

Aprilia RX 125 2018

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Overview - KTM 125 Duke 2021 vs Aprilia RX 125 2018

KTM 125 Duke 2021

KTM 125 Duke 2021

Aprilia RX 125 2018

Aprilia RX 125 2018

Technical Specifications KTM 125 Duke 2021 compared to Aprilia RX 125 2018

KTM 125 Duke 2021
Aprilia RX 125 2018
KTM 125 Duke 2021
KTM 125 Duke 2021
Aprilia RX 125 2018
Aprilia RX 125 2018

Engine and Drive Train

BoreBore58 mmBore54 mm
StrokeStroke47.2 mmStroke54.5 mm
Engine powerEngine power15 HPEngine power15 HP
Rpm at Max. PowerRpm at Max. Power9,500 rpmRpm at Max. Power8,250 rpm
TorqueTorque12 NmTorque12.2 Nm
Rpm at TorqueRpm at Torque7,500 rpmRpm at Torque8,000 rpm
StarterStarterElectricStarterKick
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Number of gearsNumber of gears6Number of gears6
CylindersCylinders1Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement125 ccmDisplacement125 ccm

Suspension Front

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

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock

Brakes Front

TypeTypeSingle diskTypeDouble disk
PistonPistonFour pistonsPistonDouble piston

Brakes Rear

TypeTypeDiscTypeDisc
PistonPistonSingle pistonPistonSingle piston

Dimensions and Weights

Front tyre widthFront tyre width110 mmFront tyre width90 mm
Front tyre heightFront tyre height70 %Front tyre height90 %
Front tyre diameterFront tyre diameter17 inchFront tyre diameter21 inch
Rear tyre widthRear tyre width150 mmRear tyre width120 mm
Rear tyre heightRear tyre height60 %Rear tyre height90 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter18 inch
WheelbaseWheelbase1,367 mmWheelbase1,490 mm
Seat HeightSeat Height830 mmSeat Height925 mm
Fuel Tank CapacityFuel Tank Capacity13.4 lFuel Tank Capacity10 l
License compliancyLicense compliancyA1License compliancyA1

Pros and Cons in comparison

Pros and Cons in comparison

KTM 125 Duke 2021

KTM 125 Duke 2021

Even in the Euro 5 version, the KTM Duke 125 is the motorbike to beat in the A1 class. Superior equipment, potent engine, good chassis, great display and fun Supermoto mode make not only the heart of 16-year-olds beat faster. The looks polarise, but let the observer clearly recognise the smallest Duke as such. The Duke 125 is not cheap, but it is worth the price.

lively engine

super-agile handling

Supermoto mode as standard

mature chassis

top brakes

sharp TFT display

connectivity (optional)

Optics not to everyone's taste

price high for a 125cc bike

Aprilia RX 125 2018

Aprilia RX 125 2018

Unfortunately, our editors did not test this model.

Price Comparison Avarage Market Price KTM 125 Duke vs Aprilia RX 125

Price KTM 125 Duke

Model year
Current average market prices

Price Aprilia RX 125

Model year
Current average market prices

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1000PS Partner

ChigeeContinental MotorradreifenMotorex AGcalimoto GmbH