Triumph Street Triple S 2018 vs. KTM 790 Duke 2020

Triumph Street Triple S 2018

Triumph Street Triple S 2018

KTM 790 Duke 2020

KTM 790 Duke 2020

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Overview - Triumph Street Triple S 2018 vs KTM 790 Duke 2020

When comparing the Triumph Street Triple S 2018 and the KTM 790 Duke 2020, several factors come into play.

In terms of engine specifications, both bikes have inline engines with liquid cooling and fuel injection systems. However, the Street Triple S has a slightly higher engine power of 113 HP compared to the 105 HP of the 790 Duke. The Street Triple S also has three cylinders, while the 790 Duke has two. The displacement of the Street Triple S is 765ccm, whereas the 790 Duke has a displacement of 799ccm.

Moving on to the suspension, both bikes feature upside-down telescopic forks at the front and swing arm suspensions at the rear. The Street Triple S is equipped with Showa suspension components, while the 790 Duke features WP suspension. Both bikes have adjustable rear suspension preload, but the Street Triple S has a rear suspension made of aluminum, whereas the 790 Duke does not specify the material.

Triumph Street Triple S 2018

Triumph Street Triple S 2018

In terms of chassis, the Street Triple S has an aluminum frame with a twin tube design, while the 790 Duke has a chromium-molybdenum frame with a tubular design. Both bikes have double disk brakes at the front, but the diameter of the Street Triple S's front brakes is slightly larger at 310mm compared to the 300mm of the 790 Duke. The Street Triple S has double piston front brakes, while the 790 Duke has four-piston front brakes.

Both bikes come with advanced rider assistance systems such as ABS, riding modes, and traction control. Additionally, they both have similar dimensions and weights, with front and rear tire widths of 120mm and 180mm respectively, and 17-inch tire diameters. The Street Triple S has a wheelbase of 1410mm, while the 790 Duke has a slightly longer wheelbase of 1475mm. The seat height of the Street Triple S is 810mm, while the 790 Duke has a slightly higher seat height of 825mm. The dry weight of the Street Triple S with ABS is 166kg, while the 790 Duke weighs 169kg with ABS. The Street Triple S has a larger fuel tank capacity of 17.4 liters compared to the 14 liters of the 790 Duke.

KTM 790 Duke 2020

KTM 790 Duke 2020

Now, let's consider the strengths and weaknesses of each bike. The Street Triple S is praised for its great handling, brilliant sound, beautiful looks, comfortable seat, big tank, and two riding modes. On the other hand, its weaknesses lie in the chassis and technical equipment, which leave room for improvement.

The 790 Duke, on the other hand, is commended for its high-revving two-cylinder engine, quickshifter as standard, great chassis set-up, playful handling, high-quality electronics package, TFT display, and good price/performance ratio. Its only weakness is that the suspension spring preload is adjustable at the rear only.

In conclusion, both the Triumph Street Triple S 2018 and the KTM 790 Duke 2020 offer their own unique strengths and weaknesses. The Street Triple S excels in terms of engine power and displacement, while the 790 Duke stands out with its high-quality electronics and playful handling. Ultimately, the choice between the two will depend on the rider's preferences and priorities.

Technical Specifications Triumph Street Triple S 2018 compared to KTM 790 Duke 2020

Triumph Street Triple S 2018
KTM 790 Duke 2020

Engine and Drive Train

Engine typeEngine typeIn lineEngine typeIn line
BoreBore78 mmBore88 mm
StrokeStroke53.4 mmStroke65.7 mm
Engine powerEngine power113 HPEngine power105 HP
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Transmission TypeTransmission TypeGearshiftTransmission TypeGearshift
Number of gearsNumber of gears6Number of gears6
CylindersCylinders3Cylinders2
StrokesStrokes4-StrokeStrokes4-Stroke
Valves per cylinderValves per cylinder4Valves per cylinder4
ValvesValvesDOHCValvesDOHC
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement765 ccmDisplacement799 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
BrandBrandShowaBrandWP
DiameterDiameter41 mmDiameter43 mm
TravelTravel110 mmTravel140 mm

Suspension Rear

SuspensionSuspensionSwing armSuspensionSwing arm
Shock absorberShock absorberMonoshockShock absorberMonoshock
Shock mountShock mountDeflectionShock mountDeflection
BrandBrandShowaBrandWP
TravelTravel124 mmTravel150 mm
AdjustmentAdjustmentPreloadAdjustmentPreload
MaterialMaterialAluminiumMaterialAluminium

Chassis

FrameFrameAluminiumFrameChromium-molybdenum
Frame typeFrame typeTwin TubeFrame typeTubular
RakeRake65.2 degreeRake66 degree

Brakes Front

TypeTypeDouble diskTypeDouble disk
DiameterDiameter310 mmDiameter300 mm
PistonPistonDouble pistonPistonFour pistons

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter220 mmDiameter240 mm
PistonPistonSingle pistonPistonDouble piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABS, Riding modes, Ride by Wire, Traction controlAdvanced Rider Assistance SystemsABS, Riding modes, Traction control

Dimensions and Weights

Front tyre widthFront tyre width120 mmFront tyre width120 mm
Front tyre heightFront tyre height70 %Front tyre height70 %
Front tyre diameterFront tyre diameter17 inchFront tyre diameter17 inch
Rear tyre widthRear tyre width180 mmRear tyre width180 mm
Rear tyre heightRear tyre height55 %Rear tyre height55 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
WheelbaseWheelbase1,410 mmWheelbase1,475 mm
Seat HeightSeat Height810 mmSeat Height825 mm
Dry Weight (with ABS)Dry Weight (with ABS)166 kgDry Weight (with ABS)169 kg
Fuel Tank CapacityFuel Tank Capacity17.4 lFuel Tank Capacity14 l
License compliancyLicense compliancyALicense compliancyA

Pros and Cons in comparison

Pros and Cons in comparison

Triumph Street Triple S 2018

Triumph Street Triple S 2018

Clean responsiveness, great sound and a driving position - the Street Triple S offers a comfortable yet sporty riding experience. The naked bike rides with exceptional precision and agility and offers a lot of comfort, even on longer rides, where you can also enjoy the large 17.4-litre fuel tank. The electronic throttle control ensures precise response and makes it possible to set different riding modes. We also found the comparatively low vibrations for a triple and the pleasant geometry of the vehicle positive. Compared to the other bikes in the test and its two siblings, the R and RS, the chassis is a little lax - but the ingenious, husky roaring three-cylinder sound was convincing and definitely made our hearts beat faster!

Great handling

Brilliant sound

Beautiful looks

Comfortable seat

Big tank

2 riding modes

Chassis and technical equipment leave room for improvement

KTM 790 Duke 2020

KTM 790 Duke 2020

A sporty naked bike that not only has enough power, but also playful handling and high-quality equipment - the KTM 790 Duke ticks all the boxes. If the looks don't bother you, it's hard to find anything the 790 can't do well, because in its hunting ground - the country road - it forms a wonderfully rounded package that doesn't really leave anything to be desired. Initial teething troubles have also been solved, which is why the KTM 790 Duke is still a real recommendation!

high-revving two-cylinder

quickshifter + as standard

great chassis set-up

playful handling

high-quality electronics package

TFT display

good price/performance ratio

Suspension spring preload adjustable at the rear only

Price Comparison Avarage Market Price Triumph Street Triple S vs KTM 790 Duke

There are a few key differences between a Triumph Street Triple S 2018 and a KTM 790 Duke 2020. It takes less time to sell a KTM 790 Duke with 78 days compared to 82 days for the Triumph Street Triple S. Since model year 2017 1000PS.de editors have written 3 reviews for the Triumph Street Triple S and 35 reviews for the KTM 790 Duke since model year 2018. The first review for the Triumph Street Triple S was published on 10/01/2017 and now has more than 58,400 views. This compares to more than 160,600 views for the first review on KTM 790 Duke published on 09/11/2016.

Price Triumph Street Triple S

Model year
Current average market prices

Price KTM 790 Duke

Model year
Current average market prices

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