Triumph Street Twin 2021 vs. Beta Alp 4.0 2024

Triumph Street Twin 2021

Triumph Street Twin 2021

Beta Alp 4.0 2024

Beta Alp 4.0 2024

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Technical Specifications Triumph Street Twin 2021 compared to Beta Alp 4.0 2024

Triumph Street Twin 2021
Beta Alp 4.0 2024

Engine and Drive Train

BoreBore84.6 mmBore84.5 mm
StrokeStroke80 mmStroke62 mm
Compression RatioCompression Ratio11 Compression Ratio12.29
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Number of gearsNumber of gears5Number of gears6
CylindersCylinders2Cylinders1
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesOHCValvesDOHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement900 ccmDisplacement348 ccm

Suspension Front

Front suspensionFront suspensionTelescopic forkFront suspensionTelescopic fork
DiameterDiameter41 mmDiameter43 mm
TravelTravel120 mmTravel185 mm

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberDual ShockShock absorberMonoshock
TravelTravel120 mmTravel195 mm
AdjustmentAdjustmentPreloadAdjustmentPreload

Chassis

FrameFrameSteelFrameSteel
Frame typeFrame typeDouble cradleFrame typePerimeter

Brakes Front

TypeTypeDouble diskTypeSingle disk
DiameterDiameter310 mmDiameter290 mm

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter255 mmDiameter220 mm

Dimensions and Weights

Front tyre widthFront tyre width100 mmFront tyre width90 mm
Front tyre heightFront tyre height90 %Front tyre height90 %
Front tyre diameterFront tyre diameter18 inchFront tyre diameter21 inch
Rear tyre widthRear tyre width150 mmRear tyre width140 mm
Rear tyre heightRear tyre height70 %Rear tyre height80 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter19 inch
LengthLength2,095 mmLength2,200 mm
WidthWidth780 mmWidth820 mm
HeightHeight1,110 mmHeight1,220 mm
WheelbaseWheelbase1,450 mmWheelbase1,440 mm
Seat HeightSeat Height765 mmSeat Height865 mm
Fuel Tank CapacityFuel Tank Capacity12 lFuel Tank Capacity11 l
RangeRange292 kmRange313 km
Combined CO2 emissionsCombined CO2 emissions93 g/kmCombined CO2 emissions83 g/km
Combined fuel consumptionCombined fuel consumption4.1 l/100kmCombined fuel consumption3.51 l/100km

Pros and Cons in comparison

Pros and Cons in comparison

Triumph Street Twin 2021

Triumph Street Twin 2021

Unfortunately, our editors did not test this model.

Beta Alp 4.0 2024

Beta Alp 4.0 2024

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 Triumph Street Twin vs Beta Alp 4.0

Price Triumph Street Twin

Model year
Current average market prices

Price Beta Alp 4.0

Model year
Current average market prices

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