2020 KTM 790 Duke Specifications

Name: 2020 KTM 790 Duke
Brand: KTM

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2020 KTM 790 Duke Overview

The 2020 KTM 790 Duke is a sport motorcycle built around 799 cc of displacement. Under the tank sits a Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder engine, a compression ratio of 12.7:1. 2020 KTM 790 Duke delivers 78 kW @ 9000 rpm of peak power and 87 Nm @ 8,000 rpm of torque. From a practical standpoint, the 2020 790 Duke tips the scales at 169 kg, carries a 14-litre fuel tank, offers a seat height of 825 mm and spans a 1475 ± 15 mm wheelbase. Scroll down for the complete 2020 KTM 790 Duke spec sheet covering every technical detail from suspension travel to tyre sizes.

2020 790 Duke - Pros & Cons

Strengths

Strong power output: 2020 KTM 790 Duke makes 78 kW @ 9000 rpm with 87 Nm @ 8,000 rpm of torque - competitive figures for its class.

Considerations

Tall seat height: The 825 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.

Owner Experiences & Common Issues

General ownership notes

The 2020 KTM 790 Duke has built a reputation for solid everyday reliability when serviced to schedule. As with any motorcycle of this era, documented service history is the single biggest indicator of long-term reliability when buying used.

790 Duke - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2020 KTM 790 Duke, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained 790 Duke should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any 790 Duke. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.

2020 KTM 790 Duke - Frequently Asked Questions

What engine does the 2020 KTM 790 Duke have?

The 2020 KTM 790 Duke uses a Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder engine with 799 cc of displacement. It is liquid cooled.

How much does the 2020 KTM 790 Duke weigh?

The 2020 KTM 790 Duke weighs 169 kg. This is the manufacturer's dry figure.

How much power does the 2020 KTM 790 Duke make?

The 2020 KTM 790 Duke produces 78 kW @ 9000 rpm of power and 87 Nm @ 8,000 rpm of torque. These are peak figures.

What is the fuel tank capacity of the 2020 KTM 790 Duke?

The 2020 KTM 790 Duke has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.

Is the 2020 KTM 790 Duke suitable for shorter riders?

The 2020 KTM 790 Duke has a seat height of 825 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2020 KTM 790 Duke have?

The 2020 KTM 790 Duke uses 2x 300mm discs at the front and Single 240mm disc at the rear.

What tyre sizes does the 2020 KTM 790 Duke use?

The 2020 KTM 790 Duke runs 120/70-17 front and 180/55-17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2020 KTM 790 Duke have?

The 2020 KTM 790 Duke is fitted with a 6 Speed transmission.

KTM 790 Duke Spec Evolution

The KTM 790 Duke was produced across 4 model years (2020-2025). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2020	2022	2023	2025
Max Power	78 kW / 105 hp @ 9000 rpm	77 kW / 105 hp @ 9000 rpm (95 hp European version)	77 kW / 105 hp @ 9000 rpm	77 kW / 105 hp @ 9000 rpm A2 Licence: 70 kW / 94 hp @ 8000
Dry Weight	169 kg / 372.5 lbs	169 kg / 372.5 lbs	-	169 kg / 372.6 lbs
Seat Height	825 mm / 32.4 in	825 mm / 32.4 in	835.6 mm / 32.9 in (805 mm / 31.7 inches optional)	825 mm / 32.5 in
Brakes - Front	2x 300mm discs	2x 300mm discs, radially mounted 4 piston caliper	2x 300mm discs, radially mounted 4 piston caliper	2 x 300mm discs, radially mounted 4 piston caliper
Brakes - Rear	Single 240mm disc	Single 240mm disc, 2 piston floating caliper	Single 240mm disc, 2 piston floating caliper	Single 240mm disc, 2 piston floating caliper
Suspension - Front	43mm WP upside-down	WP APEX 43	43mm Non-adjustable inverted WP APEX fork	43mm Non-adjustable inverted WP APEX fork
Suspension - Rear	WP shock absorber with preload adjuster	WP APEX - Monoshock	Linkage-free, cantilevered spring-preload adjustable WP Apex shock	Linkage-free, cantilevered spring-preload adjustable WP Apex shock
ABS	Bosch 9MP two-channel ABS (incl. Supermoto mode, diesengageable)	Bosch 9.1 MP (incl. Cornering-ABS and super moto mode, disengageable)	Bosch 9.1 MP (incl. Cornering-ABS and super moto mode, disengageable)	Bosch 9.1 MP (incl. Cornering-ABS and super moto mode, disengageable)