KTM SX And SX-F Models Overhauled (And the SX 150 Returns)


Spring has sprung in the northern hemisphere, and KTM is announcing updates to its motocross lineup to help you handle the upcoming season at the track!

There’s plenty of news for 2024, but the biggest tidbit might be the return of the KTM 150 SX. This is based on the two-stroke 125 SX model, but KTM says it has “a significant overhaul of components.” It’s built for improved performance, and with more torque on-tap, it’s supposed to be more fun all through the rev range.

The new 150 is fuel-injected, of course; WP XACT AER fork comes standard, with a WP XACT shock. See more details at KTM’s website here. Alas, there’s no price tag there; ask your local dealer to see what you’ll pay.

The rest of the lineup

Other than that, it’s all the same bikes back for 2024 (although because of the vagaries of the marketeers, they’re billed as 2025 models). It seems we are back to the usual pattern of small year-over-year updates that we saw before COVID sent the industry sideways for a couple of years.

The big news is that all the new SX-F models now have an optional Connectivity Unit Offroad available through the PowerParts program. This comes as a kit that includes the unit itself, which attaches to the bike’s upper right fork, and a GPS sensor that attaches to the front fender. With both of these installed, the rider can then connect to their bike via the KTMconnect app, and start tinkering and tuning settings. Remember that switchable engine maps now come on many dirt bikes, and this app probably lets you dial in some of your throttle response settings and other map parameters.


The SX-F models also have a new muffler that is supposed to offer crisp throttle response.

Aside from that, there’s also a list of updates that the entire SX and SX-F lineup receives:

“The 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. These changes have been specifically engineered to improve chassis flex characteristics and reduce weight by around 300 g 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 and SX-F models, providing stability and control at the highest level to perform at their best. These feature a new carcass compound that improves damping and absorption, adding up to 30% 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 setup is taken directly from the KTM Factory Racing Team and is optimized to benefit weight savings and stiffness parameters. To complement the updates at the rear, the WP XACT AER fork features reworked settings to account for more flex and less weight.

Ergonomically, the 2025 KTM SX and SX-F 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.”

For more info, check out KTM’s motocross lineup here.

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