KTM’s ultimate expression of motocross engineering reaches a zenith for 2027. The brand-new KTM 450 SX-F FACTORY EDITION and KTM 250 SX-F FACTORY EDITION will usher in a fresh generation of genre-defining technology and standards.
Every year KTM’s SX-F FACTORY EDITIONS have taken the stock KTM 450 SX-F and KTM 250 SX-F and sharpened what was already a potent track tool into a race winner. A series of modifications, upgrades, ‘factory’ enhancements and even aesthetic touches left the task of conquering the track firmly in the hand of the rider. For 2027, KTM has remixed the technical palette for the new FACTORY EDITION models.
THE HIGHLIGHTS:
- The first models to carry KTM’s new generation vision and engineering for the KTM SX-F roster, with transformations for the chassis, engine, suspension, ergonomics, exhaust system and graphics
- Lighter, race-proven frame and parts with new geometry and stiffness parameters for prime agility, stability and feedback, augmented by new fully revised WP XACT closed cartridge spring forks and shock
- Outstanding engine development means the KTM 250 SX-F FACTORY EDITION delivers unprecedented performance for a production single-cylinder quarter-litre four-stroke machine
- Premium race parts with Brembo, NEKEN, triple clamps and start device by WP PRO COMPONENTS, EXCEL, ODI lock on grips, Selle Dalla Valle seat cover and racing philosophy design for maintenance and servicing
KTM’s dedicated R&D department has long relied on the expertise of its race teams and athletes competing in series such as MXGP and AMA SMX, using their feedback to help shape the KTM FACTORY EDITION range. For years, the KTM 450 SX-F and KTM 250 SX-F have been at the centre of that development focus and, for 2027, these machines offer the first glimpse of the company’s next chapter in motocross excellence.
An intense period of the project has centred on three pillars; areas where KTM have reengineered and remodelled the KTM SX concept:
RIDE –The frames of both the KTM 450 SX-F and KTM 250 SX-F FACTORY EDITIONs have been resculpted to save weight, reduce mass and introduce revised geometry, new steering heads and fresh engine mounting points. The aluminium subframe is the lightest ever produced by the factory, while the wheelbase can be lengthened and the CNC-machined triple clamp features a new design. Combined with the WP XACT Closed Cartridge Spring fork and shock, one of the most advanced suspension set-ups available, the bikes deliver a higher standard of agility, stability, broader compliance and predictable feedback across a wide range of riding conditions. The 2027 KTM SX-F FACTORY EDITION also introduces revised ergonomics, including a slimmer profile, increased leg contact area, a new seat and updated footpeg surfaces. Together, these changes support improved rider movement and control on the bike.
POWER –The distinctive engine performance, torque and throttle response of the KTM SX-F FACTORY EDITION range have been further refined with a new exhaust system. The 250 SX-F FACTORY EDITION features a redesigned engine incorporating an oval throttle body, oval intake ports, a top-feed injector and an entirely redesigned valve train. Compression has increased to 15.5:1, while the rev limit now reaches 14,500 rpm, figures matched by racers in MXGP and AMA SMX. The engine also contributes to an enhanced feeling of centralisation, thanks to a position that is 2.3 mm higher in the frame. The KTM 450 SX-F FACTORY EDITION has also received a performance boost, delivering peak output of 63.8 hp at 10,000 rpm and 52 Nm of torque at 7,000 rpm. Through careful packaging, positioning and filtering via the ECU and fuel control systems, power delivery remains both optimised and manageable.
COMPETE – Pushing the 2027 KTM FACTORY EDITIONs to the limit requires equal focus on performance and preparation, with servicing playing a vital role before and after racing. The bikes feature a range of purposeful design considerations, including maintenance guidelines etched directly onto the machinery. Race-proven components from EXCEL (with a new spoke layout), NEKEN (lighter handlebars matched to the new ergonomics and offering two mounting positions) and Brembo (with a new rear pad for smoother braking) are joined by practical additions such as a new hour meter with improved accessibility. An optimised cooling system, redesigned airbox and redesigned exhaust system further strengthen the package, complementing the bikes’ latest technical developments.
The technical base and philosophy of the KTM FACTORY EDITIONs spread throughout the forthcoming 2028 KTM SX range and is the pulse behind the hardware aiming for Grand Prix victory, and AMA Supercross and Motocross success.
The new 2027 FACTORY EDITIONs will be available through authorised KTM dealers from November 2026. UK pricing confirmed as below:
- 2027 KTM 250 SX-F FACTORY EDITION – £8,899
- 2027 KTM 450 SX-F FACTORY EDITION – £9,649
Please visit this link for more information on the FACTORY EDITIONs.
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About KTM
KTM is an Austrian company known for its high-performance street and offroad motorcycles, as well as bicycles. Originally founded in 1934 as a repair shop, it now operates under the parent company Pierer Mobility AG and is Europe’s largest motorcycle manufacturer. The brand is synonymous with its “READY TO RACE” philosophy and has achieved significant success in motorsports, which influences its product development.
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