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2024 · Hyper Naked · Buyer's Guide
Brutal Torque With A Brain
The 1390 Super Duke R Evo is what happens when a 1350 cc V-twin gets built for one purpose. The 75-degree engine makes 190 hp and 107 lb-ft, and the way it delivers that is the whole story: torque arrives early, stays thick through the middle, and keeps climbing to a 165 mph top end. Cam Shift valve timing broadens the meat of the powerband instead of chasing a peaky top-end number. Around it sits WP APEX Semi-Active Technology (SAT), 3rd Generation, adjusting damping on the fly, plus MTC, cornering ABS, ride modes and wheelie control. This is the sharp end of KTM's naked lineup.
It rides like the chassis was drawn first and the engine dropped in second. Lean clearance is generous, the 58.7-inch wheelbase keeps it stable when the front gets light, and the semi-active suspension covers everything from broken back roads to a smooth canyon sweeper without you touching a menu. It suits a rider who already knows what 190 hp means and wants it undiluted. The honest caveat: the electronics have bitten owners. Simultaneous dropouts of traction control, ABS, MTC, quickshifter and launch control under hard acceleration are reported, sometimes with dash errors and engine cut-outs. That is not a quirk you shrug off on a bike this fast.
Spec sheets don't ride bikes, but they set the baseline.
| 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 brake | 320 mm |
| Front tire | 120/70-17 |
| Rear tire | 200/55-17 |
| Wheelbase | 58.7 in (1491 mm) |
| Seat height | 32.8 in (834 mm) |
| Wet weight | 467 lb (212 kg) |
| Fuel capacity | 4.6 gal (17.5 L) |
| Top speed | 165 mph (265 km/h) |
| Fuel economy | 40 mpg (US) |
Equipment check
Chassis
Comfort
Connectivity
Drivetrain
Lighting
Safety
The named systems that set this bike apart — and what each one does for you.
Lighting
Over the years I've collected what owners tell me: in the paddock, at club nights, over coffee after a ride, and in the emails and messages riders send me directly. On the 1390 Super Duke R Evo the pattern is clear. Riders say KTM has made its big naked easier to live with on the move without sanding off its edge. The loudest worries sit away from the bike itself, in parts, dealer support, and what the extras cost.
The thing I hear most is that the 1390 feels more grown-up than the 1290. Owners describe it as more refined and lighter on the steering, with usable pull across a wider spread of revs, yet still unmistakably a Super Duke. Several say they simply can't feel the moment the variable valve timing switches over. The quickshifter comes up again and again as a big step forward, smooth both up and down the box, though on this bike it's an extra-cost option rather than standard. Braking gets near-universal praise for stopping power. The only caveat riders repeat is fade after long, hard stints on track. A smaller group singles out the rider aids: wheelie control that holds the lift you pick, and traction control that lets the rear move without snapping it sideways. A few owners also call the chassis calm and the cockpit roomier than they expected.
On the riding side, the recurring gripe is the throttle. Riders call it direct and sharp, and many say the engine still feels brutal even in the softer modes. Some openly ask how much of the performance you can really use on the street, and one owner put it more bluntly: as an everyday road bike, this much speed buys you very little. The semi-active suspension splits opinion. Riders on smooth tarmac or at the occasional track day rate the multi-mode setup as an easy choice, with Auto, Comfort, Street, Sport and Rain on offer and Track and Pro modes available at extra cost. Owners on broken back roads tell a different story. Over potholes and ruts they describe the ride as choppy and jittery, lacking the composure they wanted.
Off the bike, talk turns to money and support, and this is where the heaviest concern sits. Owners report high spare-parts prices, supply shortages and repair waits that stretch into months, and KTM's 2024–2025 insolvency only made those worries louder. The US factory warranty of 1 year or 12,000 miles is another recurring complaint, since riders see it as short for the segment. Many also resent paying extra for features they consider track-relevant: Performance and Track modes, launch control, the advanced anti-wheelie settings and, in some markets, the upgraded quickshifter. Those packs push the price up noticeably. On the plus side, riders consistently like the long valve-check interval of roughly 37,000 miles (60,000 km), which they rate as competitive for the class. Some also appreciate the self-venting clutch master cylinder, which spares them routine bleeding.
Electronics fault cascade (traction control, ABS, MTC, quickshifter, launch control simultaneous dropout)
Multiple owners report simultaneous loss of traction control, ABS, MTC, quickshifter, and/or launch control during hard acceleration. Symptoms include dashboard error messages, occasional engine cut-out / limp mode, and in some cases no error code shown despite a visible fault. Power-cycling the bike clears the fault temporarily; the condition recurs. Two community theories on root cause: (a) a defective factory battery in the early MY2024–MY2025 build run causing voltage dips that cascade through the new electronics, (b) failure of the new VVT solenoid (cam-shift actuator). Some dealer fixes have replaced the actuator; others have swapped batteries.
V-twin vibration loosens fasteners and accessories over time
V-twin engine vibration progressively loosens fasteners over miles. Substantial bolt re-torque has been required at the 9,000-mile service. The brake-fluid reservoir bracket has been known to snap on tour. Owner reports additionally mention reservoir vibration symptoms and cosmetic items such as KTM stickers peeling on radiator wings. Pattern is consistent with most big-bore V-twins; not unique to the 1390 but worth flagging because the 1390 is mechanically lighter and louder than the 1290.
Engine stalls at low speed when cold (roundabouts, traffic-light approach, slow maneuvers)
Engine cuts out at roundabouts, traffic light approaches, and slow maneuvers, predominantly when the engine is not yet at operating temperature. Some riders also report sluggish throttle response while cold. In some cases the symptom subsides once the engine has completed further break-in; in others it has been traced to a weak or aged battery.
Custom switchgear button conflicts and KTM Connect app reliability
Custom switchgear buttons sometimes override dashboard functions; the KTM Connect app needs occasional reinstall to restore navigation; minor TFT dropouts are reported. None of these are safety-relevant on their own but together they signal the electronics suite needs polishing.
Where this KTM 1390 Super Duke R Evo pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Seat height
Forget spec-sheet bragging. Here's who the 1390 Super Duke R Evo is actually built for.
For your track days this delivers the power and the chassis composure you want, and the semi-active suspension gives you real setup range. Just sort the electronics reliability before you commit to a session.
Made for WeatherTech Raceway Laguna Seca · Barber Motorsports Park · Circuit of the Americas
On Angeles Crest this is close to ideal: the mid-range means you rarely shift, and the suspension handles broken pavement without a fight. The cold-start stalling will annoy you in LA traffic.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
The Dragon rewards precision, and this bike gives you lean clearance and drive out of tight corners. It is more power than those roads need, which is the point or the problem depending on your day.
Made for Tail of the Dragon · Back of the Dragon · Blue Ridge Parkway
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Any price note compares both bikes at the same age — the youngest age both have on the used market — against this KTM 1390 Super Duke R Evo. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
