KTM 990 Duke R Tested: Sharp Naked-Bike All-Rounder

The KTM 990 Duke R doesn't tiptoe onto the scene. It arrives with the clear ambition of noticeably surpassing the already potent standard 990 Duke, not just on paper, but above all in real-world riding. The test, conducted under ideal conditions on Spanish roads near Barcelona, delivers a detailed picture of a bike that is consistently designed for performance while still remaining suitable for everyday use.

Right from the start, it's clear what KTM is going for with the R version: more power with nearly identical base parameters. The familiar parallel twin with 947cc displacement remains, but in this state of tune it produces 130 hp and delivers 103 Nm of torque. Compared to the standard Duke, that's a gain of seven hp without major technical changes. This power level isn't arbitrary; it matches exactly that of the RC990R supersports bike. This positions the Duke R clearly closer to the sporty pinnacle of the naked bike segment.

What's interesting is how this power unfolds. The engine already proves surprisingly refined at low revs. Even at around 2,000 rpm, the throttle can be opened cleanly without unpleasant on/off throttle reactions or chain-slap. That's not a given, especially with twins. At the same time, the engine remains pleasantly smooth at higher revs too. Vibrations that could lead to fatigue on longer stretches are barely present. Still, the character of a twin remains: while there's noticeably more power up top, forward drive naturally tapers off earlier than with a high-revving four-cylinder, particularly around 10,000 rpm. In return, the engine scores with a broad usable rev range and an overall very accessible power delivery.

Despite this power increase, the wet weight remains at around 190 kilograms, on par with the standard version. The focus of the development instead clearly lies on the chassis. Up front works a 48mm WP Apex fork, at the rear a likewise reworked Apex shock with a modified linkage. This adjustment results in the bike standing 15 millimeters taller overall. The effect is twofold: on one hand, ground clearance increases, allowing for greater lean angles, and on the other hand, performance improves during sporty riding, especially on the race track. Since the "raised ride height" comes from the chassis itself, the higher seating position, now 840mm, doesn't create a different knee angle. Since both the seat and footpegs were raised accordingly, ergonomics remain constant in this respect.

On the road, it becomes clear that these changes aren't merely theoretical. The Duke R conveys a balanced mix of stability and agility. While earlier generations of the Duke sometimes felt unsettled at low speeds or at the limit, the new version presents itself noticeably more composed. A trail of 100mm contributes to increased stability, especially at higher speeds and under hard acceleration. The front stays calm, the bike never feels nervous. Only in very slow corners, around 30 to 40 km/h, does a slight turn-in behavior appear that requires minimal countersteering. From about 40 to 50 km/h onwards, however, this effect disappears completely, and the bike precisely follows the chosen line.

The tires remain familiar too: a 120-section front and 180-section rear, paired with Michelin Power Cup tires. These further support the stable yet agile handling. The braking system comes from Brembo and consists of 320mm dual discs up front along with a radial pump. In practice, it convinces with very good modulation. Braking force can be finely controlled without the system engaging too aggressively. At the same time, a firm pull on the lever delivers enormous stopping power. All of this is supported by a lean-sensitive ABS that can be adjusted across several levels. This goes as far as deactivation at the rear wheel, allowing the rear to lift and enabling sporty trail braking.

A central topic of the Duke R is its electronics. KTM integrates an 8.8-inch TFT display here in a striking widescreen format. The low height ensures the front of the bike doesn't build up unnecessarily high, while the width offers enough space for extensive information. Particularly noteworthy is the touch function, which works reliably even with gloves on. This eliminates the tedious navigation through menus via switches, and settings can be selected directly.

The display can be flexibly divided, so that, for example, navigation and vehicle data can be shown in parallel. This layout can be adjusted with a swipe of the finger, which offers real added value while riding. The integrated GPS module also enables navigation without a smartphone connection. Once the map data is loaded via WLAN, the system operates independently. However, a small weakness shows up here too: the display's response speed when operated with gloves isn't particularly fast. Inputs sometimes require brief pauses to be processed correctly.

When it comes to rider assistance systems, the Duke R offers nearly everything currently possible. Traction control, wheelie control, launch control, quickshifter, and various riding modes are all present, though often only unlocked via optional packages. The Track package clearly targets sporty riders and includes, among other things, a special riding mode with direct throttle response, adjustable anti-wheelie control across five levels, launch control, as well as traction control with ten setting options. The latter can even be fine-tuned on the fly via separate switches. Rounding it all off is a lap timer, which unfortunately must be operated manually; an automatic GPS-based solution is missing despite the hardware being present.

The Tech package expands the feature set with things like cruise control and additional customization options. Interestingly, the Track package is already included within the Tech package. KTM deliberately takes the approach of offering many features as options, so buyers can decide for themselves which features they want to use permanently. After the first 1,500 kilometers, during which all systems are unlocked, the desired packages must be activated for a fee.

In practical riding, the assistance systems impress with their wide range. Traction control spans from very conservative settings offering maximum safety to nearly unrestricted power delivery for sporty riding. Especially at lean, it becomes clear how finely the system operates. The ABS also impresses with its tuning: while the front wheel always remains protected, the rear wheel can be used more freely depending on the setting, enabling controlled drifts under trail braking.

Ergonomically, the Duke R presents itself as a well-rounded overall package. For a rider around 1.80 meters tall, it offers a sporty yet comfortable seating position. The knee angle is sporty, but remains comfortable even on longer stretches. The handlebar is easy to reach, the posture leans slightly forward without feeling extreme. This creates a balance between control and comfort that convinces both on twisty country roads and on longer journeys.

A minor criticism remains the quickshifter. While it works reliably and precisely, it feels somewhat rough, particularly under partial throttle. Gear changes are clearly noticeable and are sometimes accompanied by an audible jolt. Functionally, however, there are no limitations.