Years of hard‑charging Racing and Development have shaped the KTM 125 XC into one of the most aggressive 2‑stroke weapons in GNCC competition. Light, responsive, and built to be ridden flat‑out, the KTM 125 XC defines what a modern XC screamer should be.
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 option allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily modified thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.
BREATHE EASY
AIRBOX
The robust one-piece design airbox on the KTM XC range features an air inlet sleeve and snorkel, which prevents deformation and improves airflow. But don't fret, toolless filter access is retained, with an intuitive filter mounting system and protection against dirt intrusion.
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 option allows riders to adjust high- and low-speed settings in a matter of seconds. The forks on the front end are also easily modified thanks to hand-adjustable clickers on the bottom of the fork shoe and top cap.
BREATHE EASY
AIRBOX
The robust one-piece design airbox on the KTM XC range features an air inlet sleeve and snorkel, which prevents deformation and improves airflow. But don't fret, toolless filter access is retained, with an intuitive filter mounting system and protection against dirt intrusion.
02. Start Strong
UNMATCHED PERFORMANCE
More Usable Power
The KTM 125 XC has always represented the very best of unsurpassed power and lightweight construction. The simplicity and low maintenance cost of the 2-Stroke motor have made it a favorite amongst hard-core cross country racers for generations. The KTM 250 XC enters the pits with the same legendary performance and low engine weight of only 23,9 kg (52.6 lb) - and a mission to maintain its benchmark as the one to beat.
NO CARBS. MORE MUSCLE
Fuel Injection
With Electronic Fuel Injection setting the standard, there's no more jetting setup pre-race, and thanks to the Keihin EFI, the ECU coming from Vitesco and reed valve case design, you can be guaranteed of laying down optimal power at any altitude, all of the time.
TOTAL TRACTION
Selectable Maps
Once again slicing into the 125 cc class with the leading edge of technology, the 2025 KTM 125 XC features a map select switch as standard, allowing the racer to switch between 2 perceptible engine maps. Map 1 provides the ultimate power delivery to dominate hard-pack surfaces, while Map 2 gives you the edge in soft, sandy conditions
MORE BRAAAP!
125 Factory Performance Kits
Give your KTM 125 XC a more bite with a 125 Factory Performance Kit. Comprising of upgraded engine parts, a Factory expansion chamber, and special engine mapping, it provides a 2.5 hp increase while saving 15% of weight over the standard exhaust parts.
UNMATCHED PERFORMANCE
More Usable Power
The KTM 125 XC has always represented the very best of unsurpassed power and lightweight construction. The simplicity and low maintenance cost of the 2-Stroke motor have made it a favorite amongst hard-core cross country racers for generations. The KTM 250 XC enters the pits with the same legendary performance and low engine weight of only 23,9 kg (52.6 lb) - and a mission to maintain its benchmark as the one to beat.
NO CARBS. MORE MUSCLE
Fuel Injection
With Electronic Fuel Injection setting the standard, there's no more jetting setup pre-race, and thanks to the Keihin EFI, the ECU coming from Vitesco and reed valve case design, you can be guaranteed of laying down optimal power at any altitude, all of the time.
TOTAL TRACTION
Selectable Maps
Once again slicing into the 125 cc class with the leading edge of technology, the 2025 KTM 125 XC features a map select switch as standard, allowing the racer to switch between 2 perceptible engine maps. Map 1 provides the ultimate power delivery to dominate hard-pack surfaces, while Map 2 gives you the edge in soft, sandy conditions
MORE BRAAAP!
125 Factory Performance Kits
Give your KTM 125 XC a more bite with a 125 Factory Performance Kit. Comprising of upgraded engine parts, a Factory expansion chamber, and special engine mapping, it provides a 2.5 hp increase while saving 15% of weight over the standard exhaust parts.
03. Calm Under Fire
CORNER ON RAILS
Absolute Control
No matter how gnarly the trail is, you'll stay in complete control thanks to a rider-focussed frame design that has not only been engineered for longitudinal rigidity, but also repositions rotating mass closer to the center of gravity. Thick frame walls also improve reliability, flex characteristics and offer unmatched rider feel. The shock mounting also provides the perfect amount of anti-squat for better traction out of corners, while the footpeg mounting position is positoned in such a way to reduce the risk of hooking up on roots or rocks. Additionally, forged brackets on the lower frame rails allows for easy installation of the skid plate, too.
Ergonomics
The KTM XC and XC-F range feature tank shrouds with bi-compound plastics, which work alongside the specially-developed rider triangle, providing unmatched knee contact and gripping surfaces - especially when standing on the pegs. While the plastics work to expel mud buildup in wet, muddy conditions, the flat seat profile and high-grip black seat cover provide exceptional rider movement and control. A handy grip pocket under the seat, just above the airbox, makes gripping the bike and lifting it much easier.
UNMATCHED PERFORMANCE
Go the distance
You call it a fuel tank. We call it a 8.5 liters race bucket. The transparent polythene fuel tank has a fuel tank roll - which not only secures the tank more firmly in place, and allows for easy fuel level monitoring - it also protects the frame from unwanted scrubbing and race rash.
CORNER ON RAILS
Absolute Control
No matter how gnarly the trail is, you'll stay in complete control thanks to a rider-focussed frame design that has not only been engineered for longitudinal rigidity, but also repositions rotating mass closer to the center of gravity. Thick frame walls also improve reliability, flex characteristics and offer unmatched rider feel. The shock mounting also provides the perfect amount of anti-squat for better traction out of corners, while the footpeg mounting position is positoned in such a way to reduce the risk of hooking up on roots or rocks. Additionally, forged brackets on the lower frame rails allows for easy installation of the skid plate, too.
Ergonomics
The KTM XC and XC-F range feature tank shrouds with bi-compound plastics, which work alongside the specially-developed rider triangle, providing unmatched knee contact and gripping surfaces - especially when standing on the pegs. While the plastics work to expel mud buildup in wet, muddy conditions, the flat seat profile and high-grip black seat cover provide exceptional rider movement and control. A handy grip pocket under the seat, just above the airbox, makes gripping the bike and lifting it much easier.
UNMATCHED PERFORMANCE
Go the distance
You call it a fuel tank. We call it a 8.5 liters race bucket. The transparent polythene fuel tank has a fuel tank roll - which not only secures the tank more firmly in place, and allows for easy fuel level monitoring - it also protects the frame from unwanted scrubbing and race rash.
04. Hit The Big Stuff
HARNESSING GRAVITY
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, the chassis 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.
UNFLAPPABLE FRONT END
WP XACT Fork
Let's get the technical parts out of the way first; the 48 mm WP XACT Closed Cartridge spring forks fitted to the KTM XC and XC-F line-up feature progressive and consistent damping, while oil and air bypasses reduce pressure peaks. In combination with the mid-valve damping system, all this provides exceptional feedback and rider comfort. The fork also has settings which not only complement the frame and rear linkage, but ensure stellar performance at all levels. Speaking of settings, these are easily adjusted via easy-access click adjusters for compression and rebound.
ALL-OUT TRACTION
WP XACT Shock
Keeping things in check at the rear, the WP XACT rear shock uses settings directly from the KTM Factory Racing Teams. The frame and shock geometry mean more ground clearance at the linkage, making it less susceptible to bottoming out. Small diameter linkage bolts save weight, while linkage seals refine rear shock response and advanced damping characteristics.
HARNESSING GRAVITY
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, the chassis 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.
UNFLAPPABLE FRONT END
WP XACT Fork
Let's get the technical parts out of the way first; the 48 mm WP XACT Closed Cartridge spring forks fitted to the KTM XC and XC-F line-up feature progressive and consistent damping, while oil and air bypasses reduce pressure peaks. In combination with the mid-valve damping system, all this provides exceptional feedback and rider comfort. The fork also has settings which not only complement the frame and rear linkage, but ensure stellar performance at all levels. Speaking of settings, these are easily adjusted via easy-access click adjusters for compression and rebound.
ALL-OUT TRACTION
WP XACT Shock
Keeping things in check at the rear, the WP XACT rear shock uses settings directly from the KTM Factory Racing Teams. The frame and shock geometry mean more ground clearance at the linkage, making it less susceptible to bottoming out. Small diameter linkage bolts save weight, while linkage seals refine rear shock response and advanced damping characteristics.
05. Maintaining Momentum
UNOBTRUSIVE IMPACT
Ultimate rigidity
Count on a durable chain guide and chain guard and minimize the chances of hooking on external objects - especially in extremely muddy terrain while reducing dirt build-up around the swingarm and rear sprocket.
FLAT OUT TO THE FINISH
Consistency
A 66.4 mm bore, highly innovative electronic exhaust port management, and a machined finish for accurate port timing means the cylinder on the KTM 125 XC does more than just house the piston. It results in much-improved rideability, engine control, and more adjustability of the engine characteristics, thanks to 2 selectable and distinguished engine maps. Also, it's auto-calibrating, meaning there's no more hassle with wrong power valve adjustments.
UNOBTRUSIVE IMPACT
Ultimate rigidity
Count on a durable chain guide and chain guard and minimize the chances of hooking on external objects - especially in extremely muddy terrain while reducing dirt build-up around the swingarm and rear sprocket.
FLAT OUT TO THE FINISH
Consistency
A 66.4 mm bore, highly innovative electronic exhaust port management, and a machined finish for accurate port timing means the cylinder on the KTM 125 XC does more than just house the piston. It results in much-improved rideability, engine control, and more adjustability of the engine characteristics, thanks to 2 selectable and distinguished engine maps. Also, it's auto-calibrating, meaning there's no more hassle with wrong power valve adjustments.
