Beta Alp 4.0 2025 vs. KTM 390 SMC R 2026

Beta Alp 4.0 2025

Beta Alp 4.0 2025

KTM 390 SMC R 2026

KTM 390 SMC R 2026

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Technical Specifications Beta Alp 4.0 2025 compared to KTM 390 SMC R 2026

Beta Alp 4.0 2025
KTM 390 SMC R 2026

Engine and Drive Train

BoreBore84.5 mmBore89 mm
StrokeStroke62 mmStroke64 mm
Compression RatioCompression Ratio9.5 Compression Ratio12.6
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Number of gearsNumber of gears6Number of gears6
CylindersCylinders1Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesDOHCValvesDOHC
DisplacementDisplacement348 ccmDisplacement398.7 ccm

Suspension Front

Front suspensionFront suspensionTelescopic forkFront suspensionUpside-Down telescopic fork
DiameterDiameter43 mmDiameter43 mm
TravelTravel185 mmTravel230 mm

Suspension Rear

Shock absorberShock absorberMonoshockShock absorberMonoshock
TravelTravel195 mmTravel230 mm
AdjustmentAdjustmentPreloadAdjustmentPreload, Rebound

Chassis

FrameFrameSteelFrameSteel
Frame typeFrame typePerimeterFrame typeTubular

Brakes Front

TypeTypeSingle diskTypeSingle disk
DiameterDiameter290 mmDiameter320 mm

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter220 mmDiameter240 mm

Dimensions and Weights

Front tyre widthFront tyre width90 mmFront tyre width110 mm
Front tyre heightFront tyre height90 %Front tyre height70 %
Front tyre diameterFront tyre diameter21 inchFront tyre diameter17 inch
Rear tyre widthRear tyre width140 mmRear tyre width150 mm
Rear tyre heightRear tyre height80 %Rear tyre height60 %
Rear tyre diameterRear tyre diameter19 inchRear tyre diameter17 inch
WheelbaseWheelbase1,440 mmWheelbase1,453 mm
Seat HeightSeat Height865 mmSeat Height860 mm
Fuel Tank CapacityFuel Tank Capacity11 lFuel Tank Capacity9 l
RangeRange313 kmRange264 km
Combined CO2 emissionsCombined CO2 emissions83 g/kmCombined CO2 emissions79 g/km
Combined fuel consumptionCombined fuel consumption3.51 l/100kmCombined fuel consumption3.4 l/100km

Pros and Cons in comparison

Pros and Cons in comparison

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

KTM 390 SMC R 2026

KTM 390 SMC R 2026

The KTM 390 SMC R is neither a slimmed-down 690 nor a disguised Duke derivative, but an independent interpretation of the supermoto theme - accessible, suitable for everyday use and yet with enough sharpness for serious lean angles. It does not have a brute radicality, but a clever overall package that confidently covers urban riding, after-work laps and occasional track excursions. The engine is revvy, the suspension can be fine-tuned, the brakes work exceptionally well and the ergonomics allow you to ride a longer stage - without having to fish your knees out of the petrol cap one by one afterwards. With an entry-level price of €6,299 in Germany (plus ancillary costs) and €6,999 in Austria (incl. NoVA), it remains reasonably priced - especially considering the extensive features with TFT display, traction control, supermoto ABS and an optional quickshifter. In short: If you are looking for an A2-compatible bike with character that is not only easy to ride but also easy to understand, the 390 SMC R is a successful blend of rationality and lateral behaviour. And in the end, that is perhaps exactly what the supermoto market has been missing.

Attractive entry-level price with extensive standard equipment

Revviness, powerful single cylinder

Lengthy service intervals (10.000 km)

Agile, stable and easy to control - also for beginners

WP APEX suspension adjustable

Good balance between sportiness and everyday comfort

Stable front brake (320 mm, Bybre)

Supermoto ABS can be deactivated at the rear wheel/ Clear pressure point

Successful look with underfloor exhaust

Full-length seat, comfortable seat height (860 mm)

Adjustable footrests, good ergonomics details

Agile, neutral steering behaviour/ Well-tuned gear ratio

Relatively heavy for a 390 (163 kg full tank) - due to A2 conformity

seat height for very small riders (under 1.70 m) possibly borderline

Price Comparison Average Market Price Beta Alp 4.0 vs KTM 390 SMC R

Price Beta Alp 4.0

Model year
Current average market prices

Price KTM 390 SMC R

Model year
Current average market prices

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