Aprilia RS4 125 2014 vs. KTM 390 Duke 2023

Aprilia RS4 125 2014

Aprilia RS4 125 2014

KTM 390 Duke 2023

KTM 390 Duke 2023

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Technical Specifications Aprilia RS4 125 2014 compared to KTM 390 Duke 2023

Aprilia RS4 125 2014
KTM 390 Duke 2023
Aprilia RS4 125 2014
Aprilia RS4 125 2014
KTM 390 Duke 2023
KTM 390 Duke 2023

Engine and Drive Train

BoreBore58 mmBore89 mm
StrokeStroke47 mmStroke60 mm
Engine powerEngine power15 HPEngine power44 HP
Rpm at Max. PowerRpm at Max. Power10,500 rpmRpm at Max. Power9,500 rpm
TorqueTorque10.9 NmTorque35 Nm
Rpm at TorqueRpm at Torque8,250 rpmRpm at Torque7,250 rpm
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Number of gearsNumber of gears6Number of gears6
CylindersCylinders1Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement125 ccmDisplacement373.2 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 Height820 mmSeat Height830 mm
Dry Weight (with ABS)Dry Weight (with ABS)135 kgDry Weight (with ABS)149 kg
Fuel Tank CapacityFuel Tank Capacity14.5 lFuel Tank Capacity13.4 l
License compliancyLicense compliancyA1License compliancyA2

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia RS4 125 2014

Aprilia RS4 125 2014

Unfortunately, our editors did not test this model.

KTM 390 Duke 2023

KTM 390 Duke 2023

The KTM 390 Duke is a bike that can polarise. Its strengths lie in its extensive electronic equipment, agile handling and ability to serve as a fun bike for young riders. However, the firm riding position and inconsistent engine tuning could be annoying for experienced riders. Yet the KTM 390 Duke offers plenty of riding pleasure, especially in urban environments and on sporty rides.

Class-leading electronic equipment

Workmanship and material quality commensurate with the price

Quickshifter (for an extra charge)

Agile and playful handling

Easily adjustable suspension

Excellent riding aids and safety features

Lightweight and compact

Perfect for stunts and urban riding

Less precision at high speed

Limited torque curve

Rough single-cylinder engine

Inconsistent engine tuning

Seating position takes some getting used to

Hard gear changes when shifting up

Strong vibrations in some areas, hard seat

Price Comparison Avarage Market Price Aprilia RS4 125 vs KTM 390 Duke

Price Aprilia RS4 125

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

Price KTM 390 Duke

Model year
Current average market prices

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