As with the rest of the 2-stroke Enduro range, the KTM 125 XC-W is fitted with a proven and reliable electric start system. Powered by an ultra-lightweight 2 Ah lithium-ion starter battery, it provides a safe, reliable starting time and time again, while the wiring harness has most of the electrical components carefully positioned under the seat for easy accessibility.
Review – Key Features – Features & Benefits – Specifications
2026 KTM 125 XC-W: FULL GAS.
Introducing the 2026 KTM 125 XC-W…
Looking to regain its title in the 125cc Junior Enduro classes, the KTM 125 XC-W represents the pinnacle of 2-stroke engine technology, aimed at ambitious junior enduro racers and hobby riders asking for a performance-focused machine – and first-place trophies.
2026 KTM 125 XC-W Totalmotorcycle.com Key Features
LIMITS REDEFINED: 2026 KTM ENDURO LINEUP LAUNCHED
Tracks, obstacles, stages, Hard Enduro, all-weather, all-competition: the 2026 KTM Enduro roster has the pedigree and the focus to satisfy any level, any ability, any contest. The only real question is whether riders can make the most of the engineering?
The first obvious change for 2026 comes with a shift in the naming conventions. 2-stroke enthusiasts will see that ‘EXC’ is now ‘XC-W’ for both the KTM 125 XC-W and KTM 250 XC-W models: bikes crafted for competition purposes. The KTM 300 EXC keeps the same tag, denoting its status as the sole EURO5+ homologated 2-stroke and therefore extending its potential.
The 2026 KTM Enduro portfolio consists of:
- KTM 125 XC-W
- KTM 250 XC-W
- KTM 300 EXC (all 2-stroke)
- KTM 250 EXC-F
- KTM 350 EXC-F
- KTM 450 EXC-F
- KTM 500 EXC-F (all 4-stroke)
KTM riders – past and current – know that modifications are crucial to maintain a competitive edge while newcomers to the XC-W or EXC families will be wondering how those orange bikes fly along so fast and with verve. The present KTM Enduro platform has been chiseled to an exceptionally high standard for engine technology (powerful, compact, reliable, light and advanced motors, with the TBI electronic fuel injection system for 2-strokes), the world class hydro-formed, laser-cut and robot-welded chassis’ (including lithe aluminum subframes and swingarms) with calculated longitude and torsional flex for a prime riding sensation. The bikes are race ready refined. Example? How about the forged triple clamps, Neken bars, Brembo brakes and hydraulic clutch, Keihin throttle body and ODI lock-on grips. Then other attributes like the Offroad Control Unit and GIANT high-strength alloy rims, potent LED headlight and in-mold plastics.
The 2026 range then brings significant suspension upgrades with the tried-and-tested 48 mm WP XACT Closed Cartridge fork receiving new damping settings and new, lighter, shorter springs, as well as a reworked pressure reservoir that has been adapted with revised geometry of the spring support. A new one-piece hydro stop rounds out the front fork overhaul which also results in an overall weight-saving of 200 grams. Less weight, more performance equals more feel, more confidence.
KTM signature shock technology with the WP XPLOR PDS also benefits from the same attention to parts and optimization as the fork. Maintenance is a breeze with no external moving parts to worry about. The constant strive for better traction and stability continues and takes another roll forwards.
A new protection cap has been added to the CPC fuel connector for all bikes. This not only provides an added layer against damage but is also another seal to prevent the intrusion of dirt and water. The cooling system on 2026 KTM Enduro models has undergone a revision with a new radiator cap. A standard thread allows for easier and faster opening. On a related subject radiator fans are attached on the KTM 300 EXC model and all KTM EXC-F models.
A notable difference comes through the fresh 2026 styling and in-mold graphics package for the bi-composite plastics. The effect introduces a more vivid orange to the scene but also flashes of red on the forkguards and re-modelled tank spoilers where redistributed airflow will help with cooling. The high-grip seat cover is now black with similar textured material for the frame protectors, bar pads and tank spoilers. Last but not least, Maxxis have provided a new softer compound for the superb MaxxEnduro rear tires.
The 2026 KTM EXC range is the culmination of many years of R&D fighting at the sharp end of Enduro competition worldwide, bringing dynamic race-bred performance, focused ergonomics, and leading technology to the start line. Ready for the next lap?
As always, a dedicated spread of KTM PowerWear and KTM PowerParts are designed to provide the highest levels of customization (both practical and aesthetic) with vast collections ready to meet the wishes of hobby riders and pro racers alike.
2026 KTM 125 XC-W Totalmotorcycle.com Features and Benefits
SETTING THE SAG
Adjustability
Getting READY TO RACE has never been easier. The KTM EXC range boasts a tool-free suspension setup at both ends. At the rear, our legendary, race-winning PDS technology features hand-adjustable dual compression controls, allowing riders to adjust high- and low-speed settings in a matter of seconds. On the front, the forks are also easily adjusted thanks to hand-adjustable clickers on the bottom of the fork shoe and on the fork top cap, making changing settings on the fly as easy as twisting the throttle.
DEEP BREATH
Air filter box
The air filter box is designed to ensure maximum airflow with minimal water intrusion. Precision in how the inlet ducts are positioned is aimed at preventing air deformation and maintaining filter protection. An enduro-specific splash protector under the airbox prevents water or dirt from splashing up from the rear wheel, while the Twin Air filter and air filter support design features a simple fail-proof mounting system for safe and accurate filter installation. All this ensures the air filter is easily accessed, without tools, for fast track-side maintenance.
FULLY FUELED
Fuel Tank
The transparent, polythene (XPE) fuel tank is a signature element of the KTM Enduro lineup. Having undergone thorough race testing in everything from the GNCC to the hardest of FIM hard enduros, these tanks are built, well, like tanks! A one-piece fuel pump and filter manage fuel supply, while servicing is made extra simple with easy fuel filter access. What’s more, an updated fuel tank roll now holds the tank more firmly in place and protects the frame against scrubbing.
SWITCH IT UP
Switchgear
The entire KTM Enduro range comes with an easy-to-use switchgear. On the right side of the handlebar, you’ll find a sleek start/stop switch, and on the left, an optional Map Select switch will allow riders to choose between Map 1 or Map 2.
IN MOLD
Graphics
The KTM Enduro Range gets a fresh color update. Orange dominates the color palate, but shades of dark purple and red make an appearance, creating a unique, but ultra-READY TO RACE look. As always, all graphics remain in place thanks to in-mold technology, while the seat features a high-grip seat cover in black, with the same texture shared across the frame protectors, tank spoilers, and the bar pad.
TORQUE ABOUT IT
Engine
The KTM 125 XC-W boasts all the same engine innovations that have been brought into the 2-stroke realm. The engine is designed to centralize rotating mass for optimal operation with the chassis resulting in a light and agile handling feel, together with the benefits of mass centralization and reduced weight.
FUELING SPEED
Throttle Body Injection
The KTM 2-stroke Enduro models feature electronically-controlled Throttle Body Injection – or TBI. The ECU, together with a Keihin 39mm throttle body, calculates the ideal air-fuel mixture by constantly analyzing water temperature, air temperature, ambient pressure, and pressure within the crankcase, the rpm, and the throttle position to ensure the smoothest and most consistent power delivery in the most gnarly of enduro conditions. A protection cap is used for the CPC fuel connector on all models. This not only prevents dirt from entering the sides of the connector and prevents mistakenly opening, but also adds protection from sticks or stones that might hit it. The small fuel filter in the fuel hose still stays in place and is easily accessible.
SMARTER ELECTRONICS
Offroad Control Unit
The Offroad Control Unit – or OCU – is located under the seat and replaces all the electronic fuses and relays. All outputs are switched depending on signals from the voltage regulator and the ECU continuously. In the event of over-current, outputs are deactivated individually. This makes for easy error detection as the status of each output is indicated by a red or green LED light. This means diagnosing an electrical issue out on the trail is as easy as lifting the seat, and there’s no more need to carry fiddly fuses.
PICK YOUR POWER
Selectable Engine Maps
Designed for easy operation, the map select switch is available as an optional extra on all KTM XC-W models and allows for the easy selection of 2 unique engine maps. Map 1 is the standard, more linear, and predictable power map, while map 2 is a more aggressive map for added throttle response and more crisp, explosive power output.
LITHIUM POWERED
Battery & Wiring Harness
As with the rest of the 2-stroke Enduro range, the KTM 125 XC-W is fitted with a proven and reliable electric start system. Powered by an ultra-lightweight 2 Ah lithium-ion starter battery, it provides a safe, reliable starting time and time again, while the wiring harness has most of the electrical components carefully positioned under the seat for easy accessibility.
FLUID RIDER MOTION
Ergonomics
The KTM Enduro range features a rider-focussed body-position triangle, providing improved knee contact – especially when standing on the pegs – with improved gripping surfaces all around. With the plastics working to expel mud buildup in wet, muddy conditions, a flat seat profile with a high grip seat cover providing exceptional rider movement and control, and a polyamide-reinforced aluminum subframe providing unmatched rider feel and feedback, your only concern is navigating the terrain ahead of you.
UNMATCHED PERFORMANCE
Exhaust
Binging the Braaap! Thanks to the KTM 125 XC-W’s compact engine, the header pipe is designed with the target of achieving more ground clearance and reducing the risk of damage when riding over deep roots, ruts, or climbing steep rocks. The silencer is crafted from lightweight aluminum.
COOL HEADED
Cooling System
Keeping cool is made even easier, thanks to a radiator closure with a standard thread opening. This makes it quicker and easier to open the radiator cap for top-ups. An optional radiator fan can also be fitted for additional cooling.
BUILT TO BE THE BACKBONE
Frame
Specifically engineered for longitudinal rigidity, the KTM Enduro range is engineered around a gloss-orange powder-coated frame providing exceptional rider feedback, energy absorption, and high-speed stability. This is achieved by repositioning the rotating masses in the frame along with a forged steering head connection. The footrest mounts also feature a slim design for less risk of hooking up. And when the ride comes to an end, a forged one-piece side stand ensures your enduro weapon stands proud.
MORE THAN A SUBFRAME
Subframe
An ultra-light lightweight subframe takes charge at the rear of the main frame, featuring a 2-part polyamide and reinforced aluminum construction. With the help of computational dynamics, a specific rigidity was engineered into the subframe, to deliver outstanding handling and rider feedback. This compact subframe design also boasts the the ability to bend and flex in the event of a crash, rather than break, with the subframe fully integrating electronic components, without any extra need for brackets, holders, or unnecessary fixtures.
UNFLAPPABLE FRONT END
WP XACT Closed-cartidge Fork
The proven 48 mm WP XACT Closed Cartridge fork has been updated with shorter, lighter main springs with a polished surface, which improves durability and reduces weight by 200 grams. This means these forks ensure unmatched performance at every level. But, best of all, the fork allows for full adjustment of compression and rebound without the need for any tools.
GET THE POWER DOWN
WP XPLOR Shock
Remaining a hallmark of KTM Enduro weaponry, an PDS rear shock concept improves the anti-squat behaviors of the chassis. This remains the most reliable and maintenance-friendly option for competitive enduro racing. Moreover, a lightweight WP XPLOR PDS rear shock takes charge at the rear. The rear shock received updated settings, resulting in improved pressure balance within the shock. With consistent damping, as well as full adjustability thanks to easy-to-use hand clickers for adjustments on the fly, it remains the setup to beat.
WHERE RUBBER MEETS DIRT
Wheels and Tires
The KTM Enduro line-up rolls on a set of high-strength GIANT alloy wheels coupled to CNC-machined hubs and aluminum nipples. These are wrapped in a set of ultra-grippy Maxxis MaxxEnduro tires providing exceptional traction in all conditions.
HOLD THE LINE
Stability
The KTM Enduro range remains rock-solid at any speed thanks to a repositioned and forged steering head connection and CNC-milled triple clamps. Made from high-grade aluminum, these feature optimally tuned steering stem stiffness, perfect alignment of the fork tubes, and precise geometry of the fork clamps to ensure highly responsive and smooth fork action – not to mention unwavering stability for those ultra-fast flat-out special stages.
SEE INTO THE FUTURE
LED headlight
Lighting the way forward, the KTM Enduro range features an LED headlight unit and light mask. The mask itself features improved triple clamp protection against roost and does away with the rubber mounting straps for improved fitment. Most importantly, the LED lighting unit provides serious illumination, making riding in the dark a completely new experience.
2026 KTM 125 XC-W – Totalmotorcycle.com International Specifications/Technical Details
US MSRP Price: $ See Dealer USD
Canada MSRP Price: $ See Dealer CDN
Europe/UK MSRP Price: £ See Dealer GBP (On The Road inc 20% Vat)
Engine
Design
1-cylinder, 2-stroke engine
Displacement
124.8 cm³
Transmission
6-speed
Fuel-mixture generation
Keihin EFI, throttle body 39 mm
EMS
Vitesco Technologies EMS
Clutch primary drive teeth
73
Primary drive
23:73
Clutch
Wet multi-disc DS clutch, Brembo hydraulics
Engine cylinder
Single cylinder
Engine stroke
2-Stroke
Chassis
Frame design
Central double-cradle-type 25CrMo4 steel
Front brake
Disc brake
Rear brake
Disc brake
Rear subframe design
Aluminum-reinforced polyamide
Chain
520 X-Ring
Suspension
Front suspension
WP XACT-USD, Ø 48 mm
Rear suspension
WP XPLOR shock absorber with PDS
Suspension travel (front)
300 mm
Suspension travel (rear)
310 mm
Front suspension adjustment
Compression and rebound adjustable
Rear suspension setting
Compression and rebound adjustable
Rear suspension addition
Preload adjuster
Dimensions
Seat height
963 mm
Ground clearance
347 mm
Tank capacity (approx.)
9 l
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
Posted on Tuesday, August 5th, 2025 by Michael Le Pard
