Bikes 9 Apr 2024

Detailed: 2025 KTM SX-F and SX range

Information on revamped new motocross line-up released.

A revamped 2025 KTM SX-F and SX motocross range has been uncovered by the Austrian manufacturer, featuring a striking new appearance and a series of updates directly inspired by its KTM Factory Racing efforts. Detailed on has the complete rundown.

In its latest update since the completely new 2023 line-up, KTM has upped the ante once more for 2025 when it comes to rider connection, composure, and control – along with the return of a fan favorite with the 150 SX added alongside the 125 SX, 250 SX, and 300 SX two-strokes. The four-stroke line includes the 450 SX-F, 350 SX-F and 250 SX-F.

Technically, the 2025 KTM motocross frame has received the most significant update share, with visible cutouts and tube-wall thickness changes around the front, engine mounts, and rear shock mounting areas as previously utilized on the current Factory Edition models.

These changes have been specifically engineered to improve chassis flex characteristics and reduce weight by around 300 grams, while maintaining overall stability and improving cornering behavior. An updated swingarm with a machined chain slider and an updated rear brake pedal for improved durability round off updates to the chassis.

New Dunlop Geomax MX34 Motocross tires are standard on the 2025 KTM SX-F and SX models. These feature a new carcass compound that improves damping and absorption, adding up to 30 percent longer performance. New Progressive Cornering Block Technology improves traction, grip and mud dissipation.

At the rear, the WP XACT rear shock benefits from an updated linkage with new seals and smaller diameter linkage bolts. The set-up is taken directly from the KTM Factory Racing Team and is optimized to benefit weight savings and stiffness parameters. To complement those updates, the WP XACT AER fork features reworked settings to account for more flex and less weight.

Ergonomically, the 2025 KTM SX-F and SX range features new tank shrouds with bi-composite plastics on the upper and lower flanks, providing a fresh, sharp, distinctive new look and improved cooling. This is supported by an updated fuel tank roll that protects the frame against wear from scrubbing and improves tank fitment.

Lastly, an updated air inlet sleeve and snorkel design features on the 2025 models. This is now a one-piece part, preventing deformation through a more robust and stiffer material design.

Above the surface, all-new graphics mirror the new design language of the tank shrouds and hint at the many small technical changes on the 2025 line-up. Full-orange bodywork, red and black in-mold graphics, and a more durable black seat bring a clean look while communicating pure, Ready To Race intention.

The 2025 KTM SX-F four-stroke models now feature a new exhaust silencer, providing crisper performance and torquier mid-range, all working in combination with switchable engine maps. All of this is in addition to the platform introduced for last year, upgraded in the next step for the brand.

Season 2025 also sees the introduction of the Connectivity Unit Offroad, which is available as KTM PowerParts for the 2025 KTM SX-F line-up. The CUO offers various functionalities and adjustability options via the KTMconnect app. The kit includes the CUO, mounted on the right upper fork and the GPS sensor sitting in the CUO-compatible front fender.

The 2025 KTM SX-F and SX motocross models introduce subtle yet significant enhancements, due to be released in authorized KTM dealers from this May. Discover the complete information on the 2025 KTM line-up – including the mini models – online through the official KTM website.