Published October 29, 2025 by Michael Le Pard , Editor‑in‑Chief
The KTM 450 SMR features one of the most exhilarating 4-stroke engines in the paddock, with its SOHC powerplant exemplifying cutting-edge engineering. The silencer offers exceptional response in combination with the mapping switch and provides a slightly quieter exhaust note.
Review – Key Features – Features & Benefits – Specifications
2026 KTM 450 SMR: ALL OUT APEX ASSAULT.
Introducing the 2026 KTM 450 SMR…
The KTM 450 SMR represents the only real all-aspect form of motorcycle sport. Taking all the best bits from the championship-winning KTM 450 SX-F and adding more asphalt bias like racing slicks, big brakes, and top-notch suspension. Simply put, it’s READY TO RACE in the very purest form.
2026 KTM 450 SMR Totalmotorcycle.com Key Features
SLIDE TO NEW LIMITS WITH THE 2026 KTM 450 SMR
KTM’s peerless competition Supermoto motorcycle, the KTM 450 SMR, receives focused upgrades and a fresh look for 2026. The stopwatch is already anxious.
The KTM 450 SMR follows KTM’s lineage and spirit. The bike is a highly refined track tool for three purposes: owning checkered flags, destroying lap records and challenging the rider to be better and faster every day. Pure performance with pure objectives. Need a reminder of the KTM SMR pedigree? Firstly, the combination of the light, grunty SOHC 450 cc engine. Secondly, the lithe and agile chassis that contributes to exceptional handling, centralization and sport-orientated ergonomics. Thirdly, the XACT WP Suspension for heightened feel and planted rear end stability. Fourthly, the tech specs; for electronics with traction control and launch control, large and powerful Brembo brakes, CNC-ed parts, ALPINA wheels, Metzeler tires and more.
KTM has enhanced this formidable competition platform with important updates to denote 2026 status. The KTM 450 SMR is the latest itineration of the ultimate expression of Supermoto thrills.
For 2025 the FIM have planted a new noise limit of 109 db. The 2026 KTM 450 SMR has been reengineered through EFI modifications, airbox inserts and silencer tweaks to meet this regulation with barely a dent in the ferocious output. Users can push the limits without hesitation, knowing that the 2026 KTM 450 SMR is still the most potent player off the line: the bike is just a little quieter about how good it is.
Riders can also be sure of quicker and more efficient maintenance, as well as increased dependability of the radiator housing, thanks to a new closure component and system. More time at speed rather than in the pits.
The 2026 KTM 450 SMR has a different insulating cap for the CPC fueling connector. The result is more protection from knocks or debris but also another shield against dirt or other terrain disrupting the engine performance and the flow from the 7.2 L tank. The fuel filter in the hose remains steadfast and easily accessible.
The KTM 450 SMR can also be equipped with the Connectivity Unit Offroad (CUO). The 2026 model has been crafted to adopt the CUO as a KTM PowerPart add-on, which opens up more set-up possibilities courtesy of the KTMConnect app through smartphones. The CUO can be fixed between the CNC Triple clamps and the GPS sensor attached to the front fender. Once a connection is established then engine management, suspension settings and mileage can be altered and tracked through a few simple taps of the screen. The GPS capabilities of the 2026 KTM 450 SMR now mean further analysis of riding style and performance on any given day or circuit.
Witness it: 2026. A new year, a new model and a new style. The KTM 450 SMR will be a more forceful orange blur due to the 2026 colors and graphics with the tough but flexible in-molded plastics. A retro dash of purple is the only concession to the past, and the distinctive KTM shade is offset with a menacing black across the frame and wheels.
2026 KTM 450 SMR Totalmotorcycle.com Features and Benefits
CLICK INTO ACTION
Easy Suspension Adjustment
As always, the suspension boasts an easy tool-free setup at both ends, ensuring you chase down the podium in total control. On the rear, a hand-adjustable dual compression control allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.
BREATHE EASY
Airbox
Designed to provide maximum airflow, the new air filter box is designed with precisely positioned inlet ducts aimed at preventing air deformation and maintaining filter protection. The Twin Air filter and air filter support design feature a simple fail-proof mounting system for safe and accurate filter installation, ensuring the air filter is easily accessed, without tools, by removing the left side panel, for easy track-side maintenance.
LESS FOCUS ON THE TOOL, MORE FOCUS ON THE TRACK
Serviceability
The KTM 450 SMR is engineered and designed to provide riders with easy-to-access service parts, as well as suspension adjustability. This allows for faster track-side and off-season maintenance, as well as making supermoto more accessible for novice riders without pit crews. For 2026, a new threaded radiator closure allows for easier and faster opening with reduced force.
UNMATCHED PERFORMANCE
More Usable Power
The KTM 450 SMR features one of the most exhilarating 4-stroke engines in the paddock, with its SOHC powerplant exemplifying cutting-edge engineering. The silencer offers exceptional response in combination with the mapping switch and provides a slightly quieter exhaust note. For those looking for more, a quick visit to the KTM PowerParts catalog will take things to the next level.
DROP THE CLUTCH
Launch Control & Quickshifter
Launch control, ENGAGED! Designed for total domination, the KTM 450 SMR comes fitted standard with launch control and Quickshifter functionality. Launch control is easily engaged by pressing the traction control and Quickshifter buttons simultaneously and works by limiting the amount of power to the rear wheel, improving traction, and preventing loss of control under hard acceleration. Meanwhile, the Quickshifter function means you can bang through from 2nd to 5th gear with your focus solely on getting to the corner first.
TOTAL TRACTION
Selectable Maps + TC
The map select switch on the KTM 450 SMR features a simpler design, allowing for easier functionality in switching between 2 engine maps. Map 1 provides a more linear power curve, while Map 2 punches all-out with aggressive throttle and explosive power. Luckily, Traction Control is easily toggled to an on or off position from the same switch, ensuring maximum traction and a distinct advantage in slippery conditions.
HIT THE APEX
Absolute Control
The KTM 450 SMR frame is built for riders who demand sharp handling and full control. Its refined flex characteristics let you carve berms, launch jumps, and tackle technical terrain with confidence. A streamlined rear shock mount boosts stability and traction, while optimized engine mounts and wall thickness ensure a balanced, responsive feel from front to back.
FLUID RIDER MOTION
Ergonomics
Tank shrouds using bi-compound plastics channel air towards the radiators more efficiently, while a concise fuel tank roll, makes for a tighter, more secure fitment, reducing the chance of frame scrubbing and dramatically improving durability. All this works alongside the specially-developed rider triangle, to provide unmatched knee contact and gripping surfaces – especially when standing on the pegs.
UNMATCHED PERFORMANCE
Performance
The KTM 450 SMR engine is tilted 2° backward, resulting in a 3mm lower front sprocket position. All of this means greatly improved mass centralization and reduced overall weight, benefiting handling and anti-squat behavior.
SLIP AND LET RIP
Slipper Clutch
The KTM 450 SMR features a SUTER slipper clutch which prevents rear wheel instability and hopping when aggressively down gearing for the apex. The result is maximum control, and the ability to perform the perfect Supermoto-style drifts into corners. What’s more, a Brembo hydraulic system guarantees perfect clutch modulation – when you’re not using the Quickshifter, that is.
UNFLAPPABLE FRONT END
WP XACT Fork
Fast and consistent damping characteristics are guaranteed thanks to the mid-valve piston concept which optimizes the oil flow within the cartridge. The WP XACT Close Cartridge fork comes with 48mm of diameter while the total length is 925mm. As always, the fork is fully adjustable in rebound and compression. Hand-adjustable clickers on the bottom of the fork shoe and fork top cap allow riders to change settings on the fly without the need of tools.
TRACK SMOOTHER
WP XACT SHOCK
Keeping things in check at the rear is the job of the WP XACT rear shock. Frame and shock geometry are optimized ground clearance at the linkage, making it less susceptible to bottoming out. Small diameter linkage bolts save weight, while new linkage seals refine rear shock response and advanced damping characteristics.
RACING ON RAILS
Wheels and Tires
Here’s looking at you, slick. Black, high-strength ALPINA rims with CNC machined hubs, and lightweight spokes, are wrapped in Metzeler Racetec SM K1 Supermoto tires as standard. Thanks to the tire’s ultra-fine silica compound, they warm-up fast and deliver exceptional grip on all surfaces.
STOPPING POWER
Brakes
Think of it as half-superbike brakes. Exceptional stopping power is guaranteed by high-performance Brembo components, with a 4-piston radial mounted caliper and a radial master cylinder working together to grab a massive 310 mm disc at the front. A single-piston caliper and a 220mm disc provide the stopping power at the rear.
WELCOME TO NEXT LEVEL MOTO
Connectivity Unit Offroad
Available as a PowerPart on the KTM 450 SMR, the Connectivity Unit Offroad – or CUO for short – offers a wide range of functionalities and adjustability options via the KTMconnect app. The CUO gives you a new insight into your riding, allows you to alter your engine behavior, and even provides you with optimized suspension settings based on individual preferences and riding conditions. Welcome to the next level moto.
NOTHING TO HOLD YOU BACK
Footpegs
The KTM 450 SMR features compact footpegs designed for precision and performance. Their reduced surface area minimizes the chance of hooking on track curbs, while enhancing control during deep lean angles, giving riders the confidence to push harder through every corner.
PRECISE, LAP AFTER LAP
Consistency
The KTM 450 SMR is equipped with a robust chain guide and guard designed for maximum durability and consistent performance. Their streamlined design reduces the risk of hooking on external objects, ensuring smooth power delivery and reliability – lap after lap.
UNOBTRUSIVE IMPACT
Energy absorption
Besides the expertly crafted, hydro-formed, laser-cut, and robot-welded frame being engineered to provide exceptional rider feedback and straight-line stability, it consists of specifically calculated parameters of longitudinal and torsional flex. This means the frame acts as a “shock absorber” of sorts, making for a less harsh ride, resulting in less rider fatigue over many hard laps.
2026 KTM 450 SMR – Totalmotorcycle.com International Specifications/Technical Details
US MSRP Price: $ 12,499 USD
Canada MSRP Price: $15,599 CDN
Europe/UK MSRP Price: £11,449 GBP (On The Road inc 20% Vat)
Engine
Design
1-cylinder, 4-stroke engine
Displacement
449.9 cm³
Transmission
5-speed
Cooling
Liquid cooled
Engine cylinder
Single cylinder
EMS
Keihin EMS
Engine stroke
4-Stroke
Silencer
Aluminium
Chassis
Brake disc diameters (front/rear)
310 / 220 mm
Front brake disc diameter
310 mm
Rear brake disc diameter
220 mm
Front brake
Disc brake
Rear brake
Disc brake
Chain
520, Non-sealed
Frame design
Central double-cradle-type 25CrMo4 steel
Steering head angle
63.9 °
Rear subframe design
Aluminum-reinforced polyamide
Wheelbase
1.472 mm
Suspension
Front suspension
WP XACT-USD, Ø 48 mm
Rear suspension
WP XACT Monoshock with linkage
Suspension travel (front)
283 mm
Suspension travel (rear)
266 mm
Front suspension adjustment
Compression and rebound adjustable
Rear suspension addition
Preload adjuster
Dimensions
Seat height
898 mm
Wheelbase
1.472 ± 10 mm
Tank capacity (approx.)
7.2 l
Ground clearance
281 mm
Weight (without fuel)
109.3 kg
Wheelbase tolerance
10 mm
Front wheel diameter
16.5 “
Rear wheel diameter
17 “
Front wheel width
3.5 “
Rear wheel width
5 “
Wheels
3.5 x 16.5″; 5 x 17″
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
