KTM Duke 250: Specs, Top Speed & Performance Review
TL;DR
- The KTM 250 Duke is a 249cc, liquid-cooled naked streetfighter producing 30–31 hp and 18 lb-ft of torque from KTM’s LC4c single-cylinder engine.
- Top speed is approximately 95 mph based on independent road testing (Ultimate Motorcycling, 2025); KTM does not publish an official figure.
- The 2024 redesign brought a new SOHC engine, all-new steel trellis frame, WP Apex suspension, ride-by-wire throttle, and cornering ABS as standard.
- At $4,599 MSRP and 365 lb curb weight, it’s the most accessible entry point into the KTM Duke lineup in the US market.
- It’s best suited to new and newer riders, urban commuters, and anyone who wants genuine KTM DNA without the 390’s price or power.
KTM Duke 250 Specs at a Glance
| Specification | Detail |
|---|---|
| Engine | 249cc, SOHC, 4-valve, liquid-cooled single |
| Engine family | LC4c |
| Horsepower | 30–31 hp @ 9,250 rpm (claimed) |
| Torque | 18 lb-ft (25 Nm) @ 7,250 rpm (claimed) |
| Compression ratio | 12.4:1 |
| Bore × stroke | 72 mm × 61.2 mm |
| Fueling | Bosch fuel injection, ride-by-wire throttle |
| Transmission | 6-speed, PASC slipper/assist clutch |
| Final drive | Chain |
| Frame | Powder-coated steel trellis |
| Subframe | Pressure die-cast aluminum |
| Front suspension | 43mm WP Apex inverted fork, 5.9 in travel (non-adjustable) |
| Rear suspension | WP Apex emulsion shock, preload-adjustable, 5.9 in travel |
| Front brake | 320mm disc, radial-mount 4-piston ByBre caliper |
| Rear brake | 240mm disc, 2-piston floating caliper |
| ABS | Cornering ABS, Supermoto mode |
| Front tire | 110/70-17 |
| Rear tire | 150/60-17 |
| Wheelbase | 53.4 in (1,357 mm) |
| Seat height | 31.4 in (800 mm); optional 32.2 in (820 mm) with PowerParts seat |
| Curb weight | 365 lb (wet) |
| Fuel capacity | 3.9 gal (15 L) |
| Display | 5-inch LCD, smartphone connectivity, turn-by-turn navigation |
| MSRP (US) | $4,599 (2024–2025) |
| Colors | Electric Orange, Ceramic White |
Sources: Cycle World, 2024; Motorcyclist Online, 2024; Motorcycle.com, 2025
KTM Duke 250 Engine: How the LC4c Single Delivers Its Power
The 2025 KTM Duke 250 runs the LC4c, a 249cc liquid-cooled, four-valve SOHC single producing 30–31 hp at 9,250 rpm and 18 lb-ft of torque at 7,250 rpm (KTM claimed figures). The 2024 redesign switched from the older DOHC layout to SOHC, simplifying the valvetrain and trimming a bit of weight from the top end (Cycle World, 2024).
Don’t expect linear, lazy power delivery. This engine needs revs. Below 6,000 rpm there’s not much happening, and the bike starts to feel genuinely alive only when you push it past 7,000. That’s not unusual for a small-bore single, but it’s worth knowing before you buy: if you’re the type who likes rolling on from 3,000 rpm in the city, the Duke 250 will feel sluggish. Keep it on the boil and it pulls hard and willingly all the way to the redline.
Bosch fuel injection and ride-by-wire throttle keep everything smooth and consistent, and the PASC (Passive Amplifying Slipper Clutch) makes aggressive downshifts drama-free. There are no ride modes on the 250 – that’s a 390 feature – so the single throttle map is what you get. In practice, it’s not a problem.
KTM Duke 250 Top Speed: What the Numbers Actually Mean
The KTM Duke 250 top speed is approximately 95 mph, based on independent road testing by Ultimate Motorcycling (2025) on California freeways. KTM does not publish an official top speed figure for this bike. Rider accounts and international road tests report real-world maximums in the 86–95 mph range depending on conditions, rider size, and wind exposure (Ultimate Motorcycling, 2025).
The naked bodywork is the limiting factor at high speed. Without any fairing or windscreen, wind blast becomes a real issue above 80 mph. At 75 mph the bike is keeping pace with highway traffic but has limited reserves, so passing maneuvers at freeway speeds require planning, not impulse (Motorcycle.com, 2025).
Here’s how the speed range breaks down in practice:
- Comfortable cruising range: 60–70 mph, engine relaxed and not buzzing excessively
- Highway capable range: 70–80 mph, working but fully committed
- Top speed territory: 85–95 mph, fully wound out, requires an open road and favorable conditions
The single-cylinder buzz that comes in above 80 mph is noticeable but not punishing on shorter runs. On longer highway stretches, it gets old.
KTM Duke 250 Acceleration: 0–60 mph and Real-World Pull
KTM does not publish a 0–60 mph time for the Duke 250, and no major outlet has published an instrumented acceleration figure for the 2024+ generation at the time of writing. Based on the bike’s 30 hp output, 365 lb curb weight, and the power delivery characteristics reported by independent reviewers, a realistic 0–60 mph estimate falls in the range of 5.5–7.0 seconds under aggressive riding conditions. That estimate is triangulated from reviewer impressions and comparative data from the outgoing KTM 200 Duke, which MotoStatz clocked at 7.61 seconds 0–60 mph with 26 hp and a lighter 341 lb (MotoStatz, 2023).
The Duke 250 has more power and more torque than the 200, but taller gearing means the extra displacement doesn’t translate directly into dramatically quicker acceleration from a stop. You need to hold the revs and work the clutch, and the payoff is a quick enough pull through the gears once you’re moving.
In traffic, it’s peppy and responsive where it counts: 30–60 mph roll-ons are satisfying when you’re already in the meat of the rev range. The slipper clutch and ride-by-wire make the power feel controlled and predictable.
Chassis, Suspension, and Handling: Why the Duke 250 Rides Better Than Its Price Suggests
The Duke 250 handles far above its $4,599 price point. A steel trellis frame with aluminum subframe and swingarm gives a planted, confidence-inspiring feel that you don’t typically find at entry-level pricing. The 53.4-inch wheelbase and 31.4-inch seat height put the bike in a comfortable, sporty position that works for a wide range of rider heights.
Front and rear suspension is WP Apex hardware – non-adjustable at the fork, preload-only at the rear. That’s the main concession over the 390 Duke’s setup. For street use and everyday riding, the WP Apex components do their job well, absorbing urban chop without feeling soft or wallowy. Don’t expect track-tunable damping, because it’s not there.
Braking is properly sorted. The 320mm front disc with a radial-mount four-piston ByBre caliper is a genuine step up from what you’d find on a typical 250cc bike. Cornering ABS and a Supermoto mode (which disables rear ABS for loose-surface use) come standard. Braking feel is firm and progressive – there’s nothing to complain about here.
The tires are standard 110/70-17 front and 150/60-17 rear. Stock rubber is functional for everyday use. If you’re doing spirited canyon runs, an upgrade to Michelin Road 6 or Pirelli Angel GT2 in the same sizes will make a noticeable difference in feel and wet-weather confidence.
What Works and What Doesn’t: An Honest Assessment
What works:
The Duke 250 is genuinely good at what it’s designed for. It’s light, flickable, and easy to place precisely in corners. At 365 lb, it feels lighter than the number suggests – several reviewers noted being surprised when they saw the actual curb weight (Ultimate Motorcycling, 2025). The 31.4-inch seat height keeps the bike accessible for shorter riders without compromising ground clearance. The ByBre front brake, cornering ABS, ride-by-wire throttle, and slipper clutch are all genuine quality items at this price point.
What doesn’t:
Power delivery below 6,000 rpm is weak. City riding at low revs requires either holding it higher than feels natural or accepting some sluggishness off the line. The LCD display is functional but noticeably less polished than the 390’s color TFT. There are no ride modes, no traction control, and no quickshifter included at MSRP – the optional quickshifter is an additional $274.99 (Motorcycle.com, 2025). Highway riding at sustained speeds above 75 mph gets tiresome faster than you’d want on a longer trip. This is not a touring bike, and it doesn’t pretend to be.
The underslung exhaust looks and sounds great at lower speeds; at highway revs it gets buzzy in a way that a two-into-one or an Akrapovic slip-on will address if noise is a concern.
Who Should Buy the KTM Duke 250?
The Duke 250 is the right bike if you want KTM’s build quality, suspension, and braking hardware at the bottom of the Duke price ladder. At $4,599, it sits $1,300 below the 390 Duke and delivers a genuinely engineered machine instead of just a budget bike with a brand badge.
It works well for:
- New riders moving up from a 125 or 300cc beginner bike who want premium hardware without full 390 power
- Urban commuters who want a light, maneuverable bike with ABS and real braking performance
- Riders who want KTM styling and want to learn on something that won’t get away from them
It’s not the right call if you spend significant time on highways above 70 mph, or if you regularly carry a passenger and luggage. Those use cases point toward the 390 Duke or something with better highway manners.
Frequently Asked Questions About the KTM Duke 250
What is the top speed of the KTM Duke 250?
Independent road testing by Ultimate Motorcycling in 2025 found a top speed of approximately 95 mph on a California freeway. KTM does not publish an official top speed. Real-world results vary between 86–95 mph depending on rider weight, conditions, and wind. The naked bodywork creates significant wind resistance above 80 mph, which limits sustained high-speed cruising.
How fast does the KTM Duke 250 reach 60 mph?
KTM does not publish a 0–60 mph time for the Duke 250, and no major outlet has published an instrumented figure for the 2024+ generation. Based on the bike’s power-to-weight ratio and reviewer impressions, a realistic estimate is 5.5–7.0 seconds under aggressive riding technique, keeping revs above 7,000 rpm on the clutch drop.
How much horsepower does the KTM Duke 250 make?
KTM claims 30–31 hp at 9,250 rpm and 18 lb-ft of torque at 7,250 rpm from the 249cc LC4c single-cylinder engine (Cycle World, 2024). The power comes on strongly above 7,000 rpm and tapers at low revs, so you need to keep the engine spinning to access the full output.
What is the weight of the KTM Duke 250?
The KTM Duke 250 has a claimed curb (wet) weight of 365 lb (approximately 166 kg). Despite that number, multiple reviewers have noted the bike feels considerably lighter than its listed weight thanks to low, centralized mass and narrow ergonomics (Ultimate Motorcycling, 2025).
What is the price of the KTM Duke 250 in the US?
The 2024 and 2025 KTM Duke 250 is priced at $4,599 MSRP plus a $425 destination charge (Motorcycle.com, 2025; Cycle World, 2024). It comes in Electric Orange or Ceramic White. The optional Akrapovic titanium slip-on exhaust adds approximately $700, and the quickshifter is an additional $274.99 through KTM’s PowerParts catalog.
Does the KTM Duke 250 have ABS?
Yes. The KTM Duke 250 comes with cornering ABS as standard equipment. It also includes a Supermoto mode that disables the rear ABS for loose-surface or track use. The front ABS remains active in Supermoto mode (Cycle World, 2024).
Is the KTM Duke 250 good for highway riding?
The Duke 250 is freeway-capable but not freeway-comfortable. It can sustain 70–75 mph without issue, but the naked riding position and single-cylinder vibration make sustained speeds above 75 mph tiring on longer runs. At 75 mph the bike doesn’t have much headroom for quick overtakes, so plan passes ahead (Motorcycle.com, 2025). For regular highway commutes over 30 miles, the 390 Duke with its extra 14 hp and full-color TFT display is a better fit.
Key Takeaways
- The KTM Duke 250 makes 30–31 hp from a 249cc SOHC LC4c single and hits approximately 95 mph in independent testing; these are the most important performance anchors for the bike.
- It weighs 365 lb, costs $4,599 MSRP in the US, and delivers standard cornering ABS, a slipper clutch, ride-by-wire throttle, and WP Apex suspension at that price point.
- Power delivery is top-end biased, so you need to keep revs above 7,000 rpm to access real performance.
- Highway riding is possible but not comfortable for long stretches; this bike is at its best between 30–70 mph.
- For new and intermediate riders, urban commuters, and anyone who wants genuine KTM hardware at the lowest price of admission, the Duke 250 earns its spot in the lineup.
