Aprilia RS4 50 2020 vs. KTM 125 Duke 2018

Aprilia RS4 50 2020

Aprilia RS4 50 2020

KTM 125 Duke 2018

KTM 125 Duke 2018

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Overview - Aprilia RS4 50 2020 vs KTM 125 Duke 2018

Aprilia RS4 50 2020

Aprilia RS4 50 2020

KTM 125 Duke 2018

KTM 125 Duke 2018

Technical Specifications Aprilia RS4 50 2020 compared to KTM 125 Duke 2018

Aprilia RS4 50 2020
KTM 125 Duke 2018
Aprilia RS4 50 2020
Aprilia RS4 50 2020
KTM 125 Duke 2018
KTM 125 Duke 2018

Engine and Drive Train

BoreBore39.9 mmBore58 mm
StrokeStroke40 mmStroke47.2 mm
Engine powerEngine power2.7 HPEngine power15 HP
Rpm at Max. PowerRpm at Max. Power5,250 rpmRpm at Max. Power10,500 rpm
TorqueTorque3.5 NmTorque12 Nm
Rpm at TorqueRpm at Torque5,500 rpmRpm at Torque8,000 rpm
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
CylindersCylinders1Cylinders1
StrokesStrokes2-StrokeStrokes4-Stroke
DisplacementDisplacement50 ccmDisplacement125 ccm

Suspension Front

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

Brakes Front

PistonPistonFour pistonsPistonFour pistons
TechnologyTechnologyradialTechnologyradial

Brakes Rear

TypeTypeDiscTypeDisc
PistonPistonSingle pistonPistonSingle piston

Dimensions and Weights

Front tyre widthFront tyre width100 mmFront tyre width110 mm
Front tyre heightFront tyre height80 %Front tyre height70 %
Front tyre diameterFront tyre diameter17 inchFront tyre diameter17 inch
Rear tyre widthRear tyre width130 mmRear tyre width150 mm
Rear tyre heightRear tyre height70 %Rear tyre height60 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
WheelbaseWheelbase1,353 mmWheelbase1,367 mm
Seat HeightSeat Height810 mmSeat Height830 mm
Fuel Tank CapacityFuel Tank Capacity14 lFuel Tank Capacity11 l
License compliancyLicense compliancyAMLicense compliancyA1

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia RS4 50 2020

Aprilia RS4 50 2020

Unfortunately, our editors did not test this model.

KTM 125 Duke 2018

KTM 125 Duke 2018

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

Price Comparison Average Market Price Aprilia RS4 50 vs KTM 125 Duke

Price Aprilia RS4 50

Unfortunately, the data available to us is not sufficient to provide meaningful price information for this model.

Price KTM 125 Duke

Model year
Current average market prices

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