Aprilia SX 125 Supermoto 2021 vs. KTM RC 390 2020

Aprilia SX 125 Supermoto 2021

Aprilia SX 125 Supermoto 2021

KTM RC 390 2020

KTM RC 390 2020

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Overview - Aprilia SX 125 Supermoto 2021 vs KTM RC 390 2020

Aprilia SX 125 Supermoto 2021

Aprilia SX 125 Supermoto 2021

KTM RC 390 2020

KTM RC 390 2020

Technical Specifications Aprilia SX 125 Supermoto 2021 compared to KTM RC 390 2020

Aprilia SX 125 Supermoto 2021
KTM RC 390 2020

Engine and Drive Train

BoreBore54 mmBore89 mm
StrokeStroke54.5 mmStroke60 mm
Engine powerEngine power15 HPEngine power44 HP
Rpm at Max. PowerRpm at Max. Power8,250 rpmRpm at Max. Power9,500 rpm
TorqueTorque12.2 NmTorque35 Nm
Rpm at TorqueRpm at Torque8,000 rpmRpm at Torque7,250 rpm
StarterStarterKickStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
CylindersCylinders1Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
DisplacementDisplacement124 ccmDisplacement373.2 ccm

Suspension Front

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

Brakes Front

TypeTypeSingle diskTypeSingle disk
PistonPistonDouble pistonPistonFour pistons

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
WheelbaseWheelbase1,480 mmWheelbase1,340 mm
Seat HeightSeat Height870 mmSeat Height820 mm
Kerb Weight (with ABS)Kerb Weight (with ABS)134 kgKerb Weight (with ABS)147 kg
Fuel Tank CapacityFuel Tank Capacity7.5 lFuel Tank Capacity10 l
License compliancyLicense compliancyA1License compliancyA2

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia SX 125 Supermoto 2021

Aprilia SX 125 Supermoto 2021

Aprilia's SX 125 is a very sporty supermoto that does justice to Aprilia's long 125cc history. Its 15 hp single-cylinder inspires with its balanced character with high suitability for everyday use, but at the same time provides a lot of fun under the helmet. The biggest advantage it has over the competition is its ABS system, which only acts on the front wheel and was installed instead of a CBS system. This makes it possible to conjure up beautiful drifts on the asphalt, as befits a true supermoto.

pleasant engine characteristics

high-quality appearance

sporty chassis

ABS instead of CBS

weak brake

KTM RC 390 2020

KTM RC 390 2020

If you can afford to pay around 8,500 euros (Germany) or just under 9,000 euros (Austria) for the RC390 R and then have around 11,000 flakes left over for the SSP 300 kit, you will get world championship-ready racing goods. "Ready to Race", the name says it all, really. In this case, "Ready to win the World Championship" would almost be more accurate, because the parts kit is actually so complete and complies with the FIM regulations. KTM is doing everything it can to accommodate all those who are considering a serious entry into the racing world, especially of course all the young hopefuls out there. KTM Customer Racing, I pull my helmet! Bravo!

Never before has it been easier to get hold of a World Championship-ready racing machine.

The realisation that I will probably not become a gifted ring rider.

Price Comparison Avarage Market Price Aprilia SX 125 Supermoto vs KTM RC 390

Price Aprilia SX 125 Supermoto

Model year
Current average market prices

Price KTM RC 390

Model year
Current average market prices

Alternative Comparisons

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