Aprilia RX 125 2021 vs. Beta Alp 4.0 2025

Aprilia RX 125 2021

Aprilia RX 125 2021

Beta Alp 4.0 2025

Beta Alp 4.0 2025

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Overview - Aprilia RX 125 2021 vs Beta Alp 4.0 2025

Aprilia RX 125 2021

Aprilia RX 125 2021

Beta Alp 4.0 2025

Beta Alp 4.0 2025

Technical Specifications Aprilia RX 125 2021 compared to Beta Alp 4.0 2025

Aprilia RX 125 2021
Beta Alp 4.0 2025

Engine and Drive Train

BoreBore54 mmBore84.5 mm
StrokeStroke54.5 mmStroke62 mm
StarterStarterKickStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Number of gearsNumber of gears6Number of gears6
CylindersCylinders1Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement125 ccmDisplacement348 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionTelescopic fork

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock

Brakes Front

TypeTypeDouble diskTypeSingle disk
DiameterDiameter260 mmDiameter290 mm

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter218 mmDiameter220 mm

Dimensions and Weights

Front tyre widthFront tyre width90 mmFront tyre width90 mm
Front tyre heightFront tyre height90 %Front tyre height90 %
Front tyre diameterFront tyre diameter21 inchFront tyre diameter21 inch
Rear tyre widthRear tyre width120 mmRear tyre width140 mm
Rear tyre heightRear tyre height80 %Rear tyre height80 %
Rear tyre diameterRear tyre diameter18 inchRear tyre diameter19 inch
LengthLength2,243 mmLength2,200 mm
WidthWidth840 mmWidth820 mm
WheelbaseWheelbase1,490 mmWheelbase1,440 mm
Seat HeightSeat Height925 mmSeat Height865 mm
Fuel Tank CapacityFuel Tank Capacity10 lFuel Tank Capacity11 l
RangeRange133 kmRange313 km
Combined fuel consumptionCombined fuel consumption7.5 l/100kmCombined fuel consumption3.51 l/100km

Pros and Cons in comparison

Pros and Cons in comparison

Aprilia RX 125 2021

Aprilia RX 125 2021

Unfortunately, our editors did not test this model.

Beta Alp 4.0 2025

Beta Alp 4.0 2025

The Alp 4.0 is a real insider tip for the niche of enduro riders. With its cultivated single-cylinder engine, stable suspension and balanced ergonomics, it offers a height of versatility. The Alp can easily cruise at high speeds, is uncomplicated in city traffic and can do more than you would expect on loose off-road terrain. Steep slopes and rally speeds are too much for it, but if you don't want to go at high speeds and extreme special stages, you can also explore moderately difficult terrain with the Alp 4.0 and don't have to do without riding pleasure. Added to this is a favourable purchase price, which makes some imperfections forgivable and leaves money for great touring.

Accessible, unspectacular, yet fun engine

Stable, well-tuned suspension that can also take harder knocks

Good ergonomics, even when stationary

Clean shifting transmission

Enduro bike tyres

Agile handling

Very versatile

Good price-performance ratio

Brakes could be more responsive

Suspension does not respond very finely to small bumps

Deactivated ABS also resets itself when the engine stalls = cumbersome

Price Comparison Avarage Market Price Aprilia RX 125 vs Beta Alp 4.0

Price Aprilia RX 125

Model year
Current average market prices

Price Beta Alp 4.0

Model year
Current average market prices

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