What category is the 2021 KTM 790 Duke?

General information
Category	Naked bike
Model	KTM 790 Duke
Year	2021

Engine and Transmission Specifications
Clutch	PASCâ„¢ antihopping clutch, mechanically operated
Transmission type	Chain (final drive)
Gearbox	6-speed
Cooling system	Liquid
Lubrication system	Forced oil lubrication with 2 oil pumps
Ignition	Bosch EMS with RBW
Fuel system	Injection
Bore x Stroke	88.0 x 65.7 mm (3.5 x 2.6 inches)
Torque	87.0 Nm (8.9 kgf-m or 64.2 ft.lbs)
Power	105.0 HP (76.6 kW)
Engine type	Twin, four-stroke
Capacity:	799.0 ccm (48.75 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc. ABS
Diameter	300 mm (11.8 inches)
Front brakes	Double disc. ABS
Rear tire	180/55-17
Front tire	120/70-17
Rear wheel travel	150 mm (5.9 inches)
Rear Suspension	WP shock absorber with Pro-Lever linkage
Front wheel travel	140 mm (5.5 inches)
Front Suspension	WP upside-down
Rake (fork angle)	24.0°
Frame type	Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated
Physical measures and capacities
Oil capacity	2.80 litres (2.96 US quarts)
Reserve fuel capacity	4.40 litres (1.16 US gallons)
Fuel capacity	14.00 litres (3.70 US gallons)
Wheelbase	1475 mm (58.1 inches)
Ground clearance	186 mm (7.3 inches)
Seat height	825 mm (32.5 inches) If adjustable, lowest setting.
Power/weight ratio	0.6213 HP/kg
Weight incl. oil, gas, etc	187.0 kg (412.3 pounds)
Dry weight	169.0 kg (372.6 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Light	LED headlight
Starter	Electric
Color options	Orange, black
Maintenance and service data
Fork tube size	43 mm (1.7 inches)
Tire pressure rear	38 PSI (2.6 Bar or 260 kPa)
Tire pressure front	33 PSI (2.3 Bar or 230 kPa)
Sprockets	16/41 (front/rear)
Chain links	118
Chain size	520
Idle speed	1750 +/- 50 RPM
Spark plugs	LMAR9AI-10
Battery	HTZ12A-BS
Coolant	2.00 litres (0.53 US gallons)
Brake fluid	DOT 4 or 5.1

Performance Profile & Rider Fit

103.6 hp

Peak Power

3.3s

0-60 mph

Best For

Track75%

City85%

Cornering92%

Daily Riding78%

Touring45%

Passenger40%

Rider Profile

Best For	Best suited to riders with at least some prior experience who want a lively, responsive naked bike rather than a first-ever motorcycle.
Purpose	Designed as a sharp, lightweight streetfighter for spirited commuting, twisty backroads and occasional trackday fun.
Rider Fit	A moderate 825mm seat height and slim chassis make it manageable for most riders, though the punchy torque demands confident throttle control.
Character	Playful, aggressive and eager to change direction, with a torquey parallel twin that rewards an energetic riding style.
Not Ideal For	Not the right choice for riders seeking long-distance comfort, pillion-friendly touring, or serious off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

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Inseam (optional)

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Feet:

At 825mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2021 KTM 790 Duke, with a relaxed knee angle of around 130 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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