KTM 390 Duke 2023 vs. Suzuki DR-Z4SM 2025

KTM 390 Duke 2023

Suzuki DR-Z4SM 2025

Technical Specifications KTM 390 Duke 2023 compared to Suzuki DR-Z4SM 2025

KTM 390 Duke 2023

Suzuki DR-Z4SM 2025

KTM 390 Duke 2023

Suzuki DR-Z4SM 2025

Engine and Drive Train

Bore	Bore	89 mm	Bore	90 mm
Stroke	Stroke	60 mm	Stroke	62.6 mm
Engine power	Engine power	44 HP	Engine power	38 HP
Rpm at Max. Power	Rpm at Max. Power	9,500 rpm	Rpm at Max. Power	8,000 rpm
Torque	Torque	35 Nm	Torque	37 Nm
Rpm at Torque	Rpm at Torque	7,250 rpm	Rpm at Torque	6,500 rpm
Compression Ratio	Compression Ratio	12.6	Compression Ratio	11.1
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath, Antihopping
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	6	Number of gears	5
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	373.2 ccm	Displacement	398 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Travel	Travel	142 mm	Travel	260 mm

Suspension Rear

Brand	Brand	WP	Brand	Kayaba
Travel	Travel	150 mm	Travel	277 mm

Chassis

Frame	Frame	Chromium-molybdenum	Frame	Steel
Frame type	Frame type	Tubular	Frame type	Double cradle
Rake	Rake	65 degree	Rake	63.5 degree

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	320 mm	Diameter	310 mm
Piston	Piston	Four pistons	Piston	Double piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	230 mm	Diameter	240 mm
Piston	Piston	Single piston	Piston	Single piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper

Assistance Systems

Advanced Rider Assistance Systems	Advanced Rider Assistance Systems	ABS, Riding modes	Advanced Rider Assistance Systems	ABS, Riding modes, Ride by Wire, Traction control

Dimensions and Weights

Front tyre width	Front tyre width	110 mm	Front tyre width	120 mm
Front tyre height	Front tyre height	70 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	150 mm	Rear tyre width	140 mm
Rear tyre height	Rear tyre height	60 %	Rear tyre height	70 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Wheelbase	Wheelbase	1,367 mm	Wheelbase	1,465 mm
Seat Height	Seat Height	830 mm	Seat Height	890 mm
Fuel Tank Capacity	Fuel Tank Capacity	13.4 l	Fuel Tank Capacity	8.7 l
License compliancy	License compliancy	A2	License compliancy	A2
Range	Range	387 km	Range	255 km
Combined CO2 emissions	Combined CO2 emissions	80 g/km	Combined CO2 emissions	80 g/km
Combined fuel consumption	Combined fuel consumption	3.46 l/100km	Combined fuel consumption	3.4 l/100km

Equipment

Equipment	Equipment	LED-Headlights, TFT display	Equipment	LED-Headlights

Pros and Cons in comparison

KTM 390 Duke 2023

The KTM 390 Duke is a bike that can polarise. Its strengths lie in its extensive electronic equipment, agile handling and ability to serve as a fun bike for young riders. However, the firm riding position and inconsistent engine tuning could be annoying for experienced riders. Yet the KTM 390 Duke offers plenty of riding pleasure, especially in urban environments and on sporty rides.

Class-leading electronic equipment

Workmanship and material quality commensurate with the price

Quickshifter (for an extra charge)

Agile and playful handling

Easily adjustable suspension

Excellent riding aids and safety features

Lightweight and compact

Perfect for stunts and urban riding

Less precision at high speed

Limited torque curve

Rough single-cylinder engine

Inconsistent engine tuning

Seating position takes some getting used to

Hard gear changes when shifting up

Strong vibrations in some areas, hard seat

Suzuki DR-Z4SM 2025

With its 398cc single cylinder and geometry, the Suzuki DR-Z4SM provides plenty of riding pleasure. Easy handling, height agility, decent acceleration. It is a real fun bike, especially in winding areas, on short distances or in city traffic. With the 8.7-litre tank, it can theoretically cover 256 km, but a stress-free 200 km to the next stop is always realistic. Yet there are points of criticism. At 9,699 euros in Germany and 9,990 euros in Austria, it is priced in the premium segment. At this price, we would have expected more: more power, sixth gear, quickshifter, adjustable levers or a more comfortable seat. The bottom line is that the DR-Z4SM is a stylish, agile A2 supermoto with reasonable maintenance intervals, which is great fun in the city and on the track, but still has air at high rpms in terms of price-performance ratio.

Agile handling, extremely light-footed

Cleanly tuned engine, sufficient acceleration

Good chassis base with many adjustabilities

Simple but useful electronics package

Classic look with modern features, LED lighting as standard

Easy to maintain and stable

Price in the premium segment

5-speed transmission

No quickshifter available

Seat very hard, sporty knee angle

Lever not adjustable

Power noticeably weak above 8,500 rpm

Price Comparison Avarage Market Price KTM 390 Duke vs Suzuki DR-Z4SM

Price KTM 390 Duke

Model year

Average market price

Current average market prices

Price Suzuki DR-Z4SM

Model year

Average market price

Current average market prices