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KTM 1390 Super Duke R (MY2024) — Hyper Naked
KTM press archive

2024–2025 · Hyper Naked · Buyer's Guide

1390 Super Duke R (MY2024)

5 / 5 NastyNils Rating · against its class

The Beast That Learned Precision

The Machine's Character

This is the top of KTM's Duke family, and it rides like it knows it. At its heart sits a 1350 cc, 75° LC8 V-twin making 190 hp and 107 lb-ft, with variable cam timing that gives the engine two personalities. Below the switch point it is tractable and civil. Above it, the big twin pulls hard all the way to the limiter. Wrapped around it are a steel trellis frame, an adjustable fork and shock, a steering damper, and a real rider-aid suite: cornering ABS, KTM's MTC traction control, and Ride-by-Wire engine maps. The whole bike is built for acceleration first, and it never pretends otherwise.

Stay on the gas and it is ferocious, yet it is easier to live with than it looks. The electronics keep all that force usable without choking it. It is not flawless. In fifth or sixth below roughly 3,500 rpm the engine runs rough, and some early bikes stall at intersections when cold. There are known sensor gremlins too, affecting the cam-position and oil-temperature sensors, which throw traction-control and quickshifter warnings. This is a bike for experienced riders who want to feel intensity every time they open the throttle. If you want calm, look elsewhere.

Hard Numbers

Spec sheets don't ride bikes, but they set the baseline.

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Key specifications
Power 190 hp (140 kW) @ 10,000 rpm
Torque 107 lb-ft (145 Nm) @ 8,000 rpm
Displacement 1350 cc
Engine 75° V-twin
Cooling Liquid-cooled
Gearbox 6-speed
Final drive Chain
Fork Upside-down (USD)
Front tire 120/70-17
Rear tire 200/55-17
Wheelbase 58.7 in (1491 mm)
Seat height 32.8 in (834 mm)
Fuel capacity 4.6 gal (17.5 L)
Top speed 180 mph (290 km/h)
Fuel economy 40 mpg (US)

Equipment check

Chassis

  • Front Suspension Adjustable Standard
  • Rear Suspension Adjustable Standard
  • Steering Damper Standard
  • Cruise Control Standard

Connectivity

  • TFT Display Standard
  • Smartphone Connectivity KTM Connectivity Unit (KTMconnect) Integrated navigationHandsfree phone integration Optional
  • USB Charging Port Standard

Lighting

  • LED Headlight Standard

Safety

  • ABS Standard
  • Cornering ABS Standard
  • Traction Control KTM Motorcycle Traction Control (MTC) Lean sensitive tractionSelectable ride modes Standard
  • Ride Modes KTM Ride-by-Wire (engine maps) Selectable ride modesRefined throttle response Standard
  • Launch Control Optional

The Voice of Experience

Portrait of NastyNils

The test ride

Fire it up and the V-twin barks with a deep, hard-edged voice that makes it clear this is no polite roadster. Before you even roll out, the front end looks hungry, and the look sets up exactly what follows. Once you're in the seat, the surprise is how much command the riding position hands back. You sit upright with a wide bar and plenty of leverage, so the bike feels a lot smaller under you than it looks from the sidewalk. The tank is broad between your knees, though, and that limits how freely you can shift your weight around. At a brisk back-road pace it feels light and eager, almost playful, until you open the throttle and the whole thing leans back on its haunches. Keep it on the highway for too long and the wind starts leaning on your chest.

Rated point by point — where it earns its keep

My own 0–100 score for this bike against the class, area by area — the marker on each bar is the class average.

This is where the bike stops talking and starts proving it. At trackdays I have watched Super Duke riders run wheel to wheel with purpose-built supersport machines, and not only the quick group at the sharp end; it holds across every skill level. On our lap time sheet it dropped into times that belong to far more focused hardware. Not many naked bikes can make that claim honestly. The styling sets the same tone before the starter even spins: a lean, hunting look up front that unsettles you before the engine fires. It presents as extroverted and uncompromising, and the ride gives back every bit of it.

What stays with me most is how completely the old Super Duke jitters have been designed out. I put early bikes around this same circuit and spent every quick lap wrestling a jumpy front and a loose rear. The 1390 asks none of that. It tracks with genuine precision when the pace climbs, and it hides its mass through tight street corners and supermoto turns, feeling like a far smaller machine until I open the throttle. The tall stance throws a lot of frontal area into the airstream, so I braced for some wander through the fast sweepers; instead it stays composed at speeds few naked bikes hold this cleanly. The standard suspension, without the Evo's electronics, turns out to be a smartly judged setup that reads both road and track without complaint, and only riders chasing the absolute edge will start wishing for more stiffness. The rider aids do real work too, keeping all that force usable and bringing the front wheel back down in a measured way rather than snapping it.

It comes down to one thing that mattered more than anything else in my braking notes: haul it down hard and late into a corner, and the rear stays glued in place. It never skips, never patters, never asks me to manage the back while I am busy setting a line. I load the brakes, commit, and the tail holds precisely where I put it. On a bike carrying this much aggression, that planted composure is worth real confidence.

Two things define this engine for me. Roll off and it slows the bike cleanly, no snatch and no stepping out at the rear, and paired with a genuinely excellent quickshifter it turns hard downshifts into corners from a chassis chore into a smooth, ordered sequence. Then wind it back out and its priorities leave no room for doubt. The tune and electronics are built around one thing, peak output and drive that hits hard, and there is nothing here trying to flatter you or soften the delivery.

Over extended testing an electrical fault developed, and it turned serious enough to sideline me for a full track event. One incident against a lot of running, but not the kind of thing I want to babysit on a machine at this price. My other gripe is the bill beyond the sticker. The quickshifter is outstanding hardware that genuinely changes how the bike rides, yet it sits on the options list, and several other features follow the same pattern where some competitors include them from the start.

For a bike that looks this hostile, what caught me off guard is how much authority it hands me from the saddle; on a tight, technical layout that control is the whole reason it works. It isn't plush, and I won't pretend otherwise. At steady highway speed the tall seating leaves my chest in clean air with nothing to brace against, and the miles start to tire me. The broad tank also boxes in my legs, so moving with the bike feels tighter than its athletic character should ask.

A winding asphalt road descending through the Appalachian Mountains, likely the famous Tail of the Dragon section in Tennessee and North Carolina. Multiple technical right-hand and left-hand curves are visible in this aerial perspective, surrounded by deciduous forest in spring foliage. Clear sunny conditions, well-maintained asphalt with yellow center lines marking the curves.
Mark Stebnicki / Pexels

The Truth on the Street

What follows is what owners have told me over the years: paddock conversations, talks in the pits after a session, club-night chatter, and the messages riders send me directly. On the 1390 Super Duke R, the pattern is consistent. Owners praise how the engine, chassis and brakes work together. Their complaints center on running costs, plus a few rough edges at very low revs and on broken pavement.

A calmer beast than the 1290

The remark I hear most often comes from riders who moved up from the 1290. They say the 1390 is easier to live with low in the revs. The pull feels broader and more tractable, and the front wheel is less eager to lift, yet the hard charge at the top end is still there. The same riders describe the chassis as sharper, more planted and less intimidating. One owner who made the switch told me that every bit of their lack of confidence simply vanished. Owners also rate the brakes highly and single out the adjustable radial master cylinder as a real step up from the old bike. Riders like how deeply the rider aids can be configured too, especially with the optional Track Pack added.

Where owners feel it in the wallet

Owners welcome the valve-check interval, which is now roughly 37,000 miles (60,000 km), double the 1290's. The rest of the running-cost talk is less positive. A recurring complaint is the price compared with the inline-four hyper nakeds it's shopped against. Rear tire wear is the other sore point. Some riders report going through five sets in a single year, and owners treat that as unusual even for this class.

Rough edges down low and on bad pavement

Several owners describe snatchy fuelling at very low rpm, a feeling that the engine wants to stall, and a rough cold start. It comes up often enough that aftermarket fuelling fixes aimed at exactly this behavior have a steady following. Owners of the Standard bike say its manually adjusted fork feels a little choppy on rutted back roads. Nobody questions its pace. Still, some riders point out that it's heavy by current superbike standards and not the bike they'd pick to chase lap times.

Known issues

  • Shift-cam (variable-valve-timing) sensor failure on the LC8

    engine occasional

    The sensor that monitors the position of the intake CamShift mechanism has been reported to fail on early-production 1390s. Symptoms include traction-control warnings, quickshifter warnings, an engine-warning light, and in some cases limp mode. This component is new with the 1390's LC8 — it does not exist on the 1290 — so the issue is platform-specific to this generation. Reports include failures from as little as 290 mi (470 km), 500 mi, and 430 mi (700 km). In one documented case, a replacement bike supplied to an affected owner exhibited the same fault, indicating a possible early-batch quality problem rather than a one-off defect.

  • Oil temperature sensor fault triggering false TC / launch-control / ABS warnings

    engine occasional

    Affected bikes display persistent warnings for traction control, launch control, and in some cases ABS; the oil-temperature display reads "---"; cruise control deactivates; on a cold start the oil-temperature reading shows 32°F (0 °C) while ambient temperature is materially higher. Errors clear after restart but recur. Owners report dealers replacing the oil temperature sensor under warranty, after which the fault is resolved on the affected unit.

  • Cold-start stalling and snatchy fuelling at very low rpm

    fuel system occasional

    Owners report that the 1390 stalls at intersections when cold and feels abrupt at very low rpm. Multiple aftermarket calibrations (BT-Moto Stage 1, OpenFlash, BoosterPlug) market themselves specifically against this behaviour, and at least one 2025 SDR EVO owner reports the cold-start stalling resolved after a Stage 1 flash. The pattern is consistent with Euro 5+ lean calibration on large-displacement V-twins and is not indicative of a hardware defect.

  • Coolant weep at the rear thermostat housing screw

    cooling occasional

    New / very-low-mileage 1390s have been reported to weep coolant from the rear thermostat housing area as the engine cools. At least two owners have reported identical symptoms, and in at least one case the first dealer reseal did not permanently solve the leak.

  • Front brake-fluid reservoir bracket vibration, with one documented failure

    brakes occasional

    The brake-fluid reservoir vibrates excessively. A brake-fluid reservoir bracket snapped at approximately 9,000 mi, attributed to V-twin vibration. This has not yet been confirmed as a widespread pattern.

The Expert Benchmark

Where this KTM 1390 Super Duke R pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.

What kind of bike this is — character vs. the class

This bike Class average

The shape of the KTM 1390 Super Duke R — numbers and character vs. the average Hyper Naked

Head-to-head: KTM 1390 Super Duke R vs. its rivals

The Handshake Score

Forget spec-sheet bragging. Here's who the 1390 Super Duke R is actually built for.

A scenic view of Angeles Crest Highway winding through rugged Southern California canyon terrain. Rocky mountainsides with golden earth tones frame the asphalt road with tight sweeping curves. Double yellow center line visible, sparse vegetation along the shoulders, clear blue sky with white clouds. Daylight, dry conditions. Iconic location for canyon-road enthusiasts.
Josh Sorenson / Pexels

Best motorcycle for Angeles Crest?

This is your weekend weapon. It stays light and precise through tight canyon bends and hits like a hammer out of every one. Just know that the freeway stretch home is where the wind finds you.

Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur

Best motorcycle for Laguna Seca?

On track days it runs with far more focused machines, and the standard suspension holds up to serious work. Budget for the quickshifter, because you'll want it.

Made for WeatherTech Raceway Laguna Seca · Barber Motorsports Park · Circuit of the Americas

Best motorcycle for Tail of the Dragon?

It carries its weight almost invisibly through tight, technical switchbacks. Just keep it out of the tall gears at low revs, where the engine runs rough and gets snatchy.

Made for Tail of the Dragon · Back of the Dragon · Blue Ridge Parkway

What's new versus the previous generation

If you're cross-shopping the older generation, here's what changed.

KTM 1290 Super Duke R (MY2020)

Previous generation · 2020–2023

KTM 1290 Super Duke R (MY2020)

179 Horses, Zero Apologies

Compare to the previous model →