It may only be April of 2024, but KTM has already launched its 2025 motocross range, which features a few chassis adjustments and the return of a once-popular two-stroke.
The chassis adjustments are only new if you ignore the 2024 ‘factory edition’ versions of the 250 and 450 SX-F (and their Husqvarna and GasGas equivalents). Basically, there are cutouts in the engine mounts towards the back of the frame, and changes to the thickness of the frame walls at the front, around the engine mounts, and around the rear shock mounts. All for the saving of 300g, and adjusting the frame’s flex characteristic.
There’s also a new swingarm with a machined chain glider, and the rear brake pedal is updated with the intention of improving durability. Further, the linkage for the rear shock is updated with smaller diameter bolts and “renewed seals,” KTM says.
Accounting for the changes at the rear and to the frame, the WP XACT AER front fork’s settings have been adjusted.
All of the bikes in the 2025 KTM SX range come standard with Dunlop’s new Geomax MX34 tyre, and are able to be equipped with KTM’s Connectivity Unit Offroad which is available as an official KTM PowerPart and allows for adjustments to be made via the KTMconnect app.
The graphics are updated, too, with an all-orange base and a black, stretched KTM logo on the side plastics.
As always, the 2025 KTM SX consists of both two-stroke and four-stroke bikes. On the two-stroke side, there is an addition in the shape of the returning 150 SX, which joins the 125 SX, 250 SX, and 300 SX. There are also the 50 SX, 65 SX, and 85 SX (the latter available in both big- and small-wheel variants) minis.
On the four-stroke side, the familiar 250 SX-F, 350 SX-F and 450 SX-F line-up returns for 2025, with the addition of an Adamo Edition 250 to celebrate the 2023 MX2 World Championship title of Red Bull KTM’s Andrea Adamo.
UK pricing and availability information for the 2025 KTM SX range has not yet been published.
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