KTM 390 Duke 2021 vs. KTM 790 Duke 2018

KTM 390 Duke 2021

KTM 390 Duke 2021

KTM 790 Duke 2018

KTM 790 Duke 2018

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Overview - KTM 390 Duke 2021 vs KTM 790 Duke 2018

The KTM 390 Duke 2021 and the KTM 790 Duke 2018 are both naked bikes with their own unique features and characteristics.

Starting with the KTM 390 Duke 2021, it is equipped with a 44 HP engine and a fuel injection system. It has a single cylinder and liquid cooling, providing efficient performance. The displacement of the engine is 373.2 ccm. The front suspension consists of an upside-down telescopic fork from WP, while the rear suspension also uses WP technology. The frame is made of chromium-molybdenum and has a tubular structure. The front brakes are single disk with a diameter of 320 mm and four pistons, using radial technology. The bike is equipped with ABS as an advanced rider assistance system. The front tire has a width of 110 mm and a diameter of 17 inches, while the rear tire has a width of 150 mm and a diameter of 17 inches. The wheelbase is 1367 mm and the seat height is 830 mm. The dry weight of the bike with ABS is 149 kg and it has a fuel tank capacity of 13.4 liters.

On the other hand, the KTM 790 Duke 2018 is more powerful with a 105 HP engine. It also has a fuel injection system and a liquid-cooled engine. However, it has two cylinders and a larger displacement of 799 ccm. The front and rear suspensions are similar to the KTM 390 Duke, using upside-down telescopic forks from WP. The frame is also made of chromium-molybdenum with a tubular structure. The front brakes are double disk with a diameter of 300 mm and four pistons, using radial technology. In addition to ABS, the KTM 790 Duke is equipped with riding modes and traction control as advanced rider assistance systems. The front tire has a width of 120 mm and a diameter of 17 inches, while the rear tire has a width of 180 mm and a diameter of 17 inches. The wheelbase is longer at 1475 mm and the seat height is slightly lower at 825 mm. The dry weight of the bike with ABS is 169 kg and it has a fuel tank capacity of 14 liters.

KTM 390 Duke 2021

KTM 390 Duke 2021

In terms of strengths, the KTM 390 Duke 2021 offers typical Duke ergonomics that are suitable for taller riders. It has extremely agile handling due to its lightweight and narrow waist. The sporty engine provides great handling, and the bike features a modern TFT display with smartphone connectivity. The supermoto mode is a pleasure to use, and the optional quickshifter works perfectly. The hand levers are adjustable, and the bike offers a top price-performance ratio for an A2 motorbike.

On the other hand, the KTM 790 Duke 2018 has a lively, high-revving engine with powerful acceleration. Its chassis is optimally tuned for sporty riding, and it produces an awesome sound even with the series muffler. The bike offers many electronic gimmicks and functions, including riding modes and traction control. The quickshifter is extremely precise, making fast riding even easier. The seating position is comfortable, allowing for long rides without fatigue.

KTM 790 Duke 2018

KTM 790 Duke 2018

However, both bikes have their weaknesses. The KTM 390 Duke 2021 has a chassis that is tuned a little too soft, affecting the overall handling. The pressure point of the brakes can also be a little spongy, reducing confidence in braking performance.

On the other hand, the KTM 790 Duke 2018 can be rough to handle at low revs, making it a bit difficult to maneuver in city traffic. Some riders may find the switches on the handlebars to be fiddly-looking. Additionally, there have been reports of oil leaks at the engine block on many 790 Dukes, which can be a cause for concern.

In conclusion, the KTM 390 Duke 2021 and the KTM 790 Duke 2018 are both impressive naked bikes with their own strengths and weaknesses. The 390 Duke offers a more affordable option with great handling and modern features, while the 790 Duke provides a more powerful and sporty riding experience with advanced electronic systems. Ultimately, the choice between the two will depend on the rider's preferences and priorities.

Technical Specifications KTM 390 Duke 2021 compared to KTM 790 Duke 2018

KTM 390 Duke 2021
KTM 790 Duke 2018

Engine and Drive Train

BoreBore89 mmBore88 mm
StrokeStroke60 mmStroke65.7 mm
Engine powerEngine power44 HPEngine power105 HP
Fuel systemFuel systemInjectionFuel systemInjection
StarterStarterElectricStarterElectric
Clutch TypeClutch TypeMultiplate in oil-bathClutch TypeMultiplate in oil-bath
TransmissionTransmissionChainTransmissionChain
Number of gearsNumber of gears6Number of gears6
CylindersCylinders1Cylinders2
StrokesStrokes4-StrokeStrokes4-Stroke
CoolingCoolingliquidCoolingliquid
DisplacementDisplacement373.2 ccmDisplacement799 ccm

Suspension Front

Front suspensionFront suspensionUpside-Down telescopic forkFront suspensionUpside-Down telescopic fork
BrandBrandWPBrandWP
DiameterDiameter43 mmDiameter43 mm
TravelTravel142 mmTravel140 mm

Suspension Rear

Shock mountShock mountdirectShock mountDeflection
BrandBrandWPBrandWP
TravelTravel150 mmTravel150 mm

Chassis

FrameFrameChromium-molybdenumFrameChromium-molybdenum
Frame typeFrame typeTubularFrame typeTubular
RakeRake65 degreeRake66 degree

Brakes Front

TypeTypeSingle diskTypeDouble disk
DiameterDiameter320 mmDiameter300 mm
PistonPistonFour pistonsPistonFour pistons
TechnologyTechnologyradialTechnologyradial

Brakes Rear

TypeTypeDiscTypeDisc
DiameterDiameter230 mmDiameter240 mm
PistonPistonSingle pistonPistonDouble piston

Assistance Systems

Advanced Rider Assistance SystemsAdvanced Rider Assistance SystemsABSAdvanced Rider Assistance SystemsABS, Riding modes, Traction control

Dimensions and Weights

Front tyre widthFront tyre width110 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 width150 mmRear tyre width180 mm
Rear tyre heightRear tyre height60 %Rear tyre height55 %
Rear tyre diameterRear tyre diameter17 inchRear tyre diameter17 inch
WheelbaseWheelbase1,367 mmWheelbase1,475 mm
Seat HeightSeat Height830 mmSeat Height825 mm
Dry Weight (with ABS)Dry Weight (with ABS)149 kgDry Weight (with ABS)169 kg
Fuel Tank CapacityFuel Tank Capacity13.4 lFuel Tank Capacity14 l
License compliancyLicense compliancyA2License compliancyA

Pros and Cons in comparison

Pros and Cons in comparison

KTM 390 Duke 2021

KTM 390 Duke 2021

The KTM 390 Duke is a "real" Duke. The trademark: Extremely agile handling that makes for powerful riding fun. The flyweight 390 can be precisely controlled with its narrow waist and wide handlebars and feels most at home in tight corners. Especially with the Supermoto mode, it is a fun machine without equal. Unfortunately, only the brakes and suspension of the 390 cannot maintain the same, very high performance level as on the 125 Duke or 890 Duke. They feel a bit spongy and not optimally tuned, especially when the rider weighs in a bit more. The equipment is otherwise tip-top, especially when you consider the price of the 390 Duke. In terms of riding pleasure/euros, it outperforms most, including its Duke sisters.

Typical Duke ergonomics that are also suitable for taller riders

Extremely agile handling thanks to flyweight and narrow waist

Sporty engine with great handling

Modern TFT display with smartphone connectivity

Supermoto mode is a pleasure

Quickshifter (optional) works perfectly

Adjustable hand levers

Top price-performance ratio for A2 motorbike.

Chassis tuned a little too soft

pressure point of the brakes a little spongy

KTM 790 Duke 2018

KTM 790 Duke 2018

The KTM 790 Duke L is an absolutely sporty naked bike with a high fun factor. Whether a beginner rider can handle it depends very much on his or her personality and riding behaviour. There are certainly motorbikes better suited for learning, but sporty radius hunters will hardly be satisfied with anything else. The 790 Duke L is also rather unenthusiastic about everyday rides in the city. On the country road, however, it's a blast, even with only 48 hp. Simply a fun bike as it is written in the book.

Lively, high-revving engine with powerful acceleration

optimally tuned chassis for sporty riding

awesome sound even with series muffler

many electronic gimmicks and functions

extremely precise quickshifter that makes fast riding even easier

comfortable seating position

Rough handling at low revs

bitchy in city traffic

sometimes fiddly-looking switches on the handlebars

oil leak at the engine block on many 790 Dukes

Price Comparison Avarage Market Price KTM 390 Duke vs KTM 790 Duke

There are a few key differences between a KTM 390 Duke 2021 and a KTM 790 Duke 2018. In terms of price, the actual average price of a KTM 790 Duke 2018 is about 47% higher. A KTM 390 Duke 2021 experiences a loss of 160 GBP in one year and 570 GBP in two years of ownership. This is offset by a loss of 590 GBP and 910 GBP for a KTM 790 Duke 2018. Compared to KTM 790 Duke 2018 there are less KTM 390 Duke 2021 bikes available on the 1000PS.de Marketplace, specifically 15 compared to 24. It takes less time to sell a KTM 790 Duke with 58 days compared to 82 days for the KTM 390 Duke. Since model year 2013 1000PS.de editors have written 33 reviews for the KTM 390 Duke and 35 reviews for the KTM 790 Duke since model year 2018. The first review for the KTM 390 Duke was published on 12/11/2012 and now has more than 26,300 views. This compares to more than 160,600 views for the first review on KTM 790 Duke published on 09/11/2016.

Price KTM 390 Duke

Model year
Current average market prices

Price KTM 790 Duke

Model year
Current average market prices

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