KTM Unveils 2027 250 and 450 SX-F Factory Edition Models

Technical preview for the 2028 SX-F range

According to mxnews-online.com, the Factory Edition models demonstrate the design direction for the 2028 regular SX-F range.

Engine performance and electronics architecture

The 250 SX-F Factory Edition engine features a redesigned valvetrain, an oval throttle body, new intake ports, and a top-feed injector. It has a 15.5:1 compression ratio and a 14,500 rpm rev limit.

A new top-feed fuel injection system places the injector higher in the intake tract to improve fuel atomization, combustion efficiency, and throttle response. Both models feature a new exhaust system and a lightweight gearbox designed for smoother and faster shifting.

A more powerful ECU manages ignition, fuel supply, gear-dependent mapping, and the quickshifter. This new Engine Management System includes knock-control technology to protect the engine.

KTM notes that all information regarding dimensions, weights, appearance, services, and scope of supply is non-binding and subject to change. Model details may vary by country and color differences may occur on coated surfaces due to process fluctuations.

Chassis, suspension, and mass centralization

The new models feature next-generation frames, suspension, and engine designs. The frame incorporates new geometry, a new steering head, and updated engine mounts. Engineers also included the lightest aluminum subframe the manufacturer has produced for series production. This component weighs 1.23 kg.

KTM designs its SX and SX-F engines to concentrate rotating mass at the core. The 250 SX-F engine is positioned 2.3 mm higher within the frame to improve mass centralization and handling precision. This adjustment aims to work with the chassis to provide lighter and more agile handling.

The chassis includes revised CNC-machined triple clamps and an updated suspension system. These clamps are adjustable, allowing for an offset between 22 mm and 24 mm. The fork system is developed for consistent damping and improved front-wheel connection.

The die-cast aluminum swingarm features an updated chain tensioner. Riders can use this extension to gain additional stability on fast, rutted sections.

KTM states that illustrated vehicles may vary from production models. Some images feature optional equipment available at an additional cost. Stated consumption values refer to the roadworthy series condition at the time of factory delivery.

Ergonomic updates for rider movement

The 2027 Factory Edition models feature revised ergonomics, including a slimmer profile and increased leg contact area. These bikes also incorporate a new seat and updated footpeg surfaces to assist rider movement.

The rear brake lever includes an adjustable tip that riders can move 5 mm forward or backward. This adjustment accommodates different rider preferences and boot sizes.

Factory-level components and equipment

The rear brake system utilizes a new Brembo pad compound designed for more consistent modulation.

The motorcycles also feature Factory Racing triple clamps and a Hinson outer clutch cover.

Additional hardware consists of a floating front wave brake disc, a front brake disc guard, an orange rear sprocket, and a golden racing chain. A durable skid plate and Factory Racing frame protection set are also provided.

The bikes carry Red Bull KTM Factory Racing graphics and an orange frame to represent their connection to championship-winning motocross bikes.

Development and market availability

These models were created through extensive testing at the highest level of the sport.

Any mentioned discounts are exclusively available through participating, authorized KTM dealers.