Two years after the launch of the revolutionary 2023 range, KTM today presents the new SX 2025 models, designed to raise the performance bar even higher in the competitive motocross segment. The new SX and SX-F are even easier to ride.
In terms of aesthetics, the new SX and SX-F are distinguished by red and black graphics, while the orange surfaces and black seat – now more resistant – provide a simple look.
In terms of ergonomics, the bikes feature new bi-composite plastic radiators on the top and bottom, which offer a new look and improved cooling. Also new is the system for attaching the tank to the frame, which prevents damage due to wear or friction and optimizes the mounting and dismounting of the tank itself.
Under the plastics, the SX and SX-F 2025 share the main innovations introduced at the end of last year with the SX-F FACTORY EDITION versions. In fact, the frame features different sizing in the steering head area – more flexible – a new upper mount for the monoshock – stiffer and lighter at the same time – and new engine mounts, lighter and more flexible. This has resulted in a saving of around 300 grams and a change in the response to effort, which benefits agility on the toughest sections and stability when cornering. Also new are the chain guide on the swingarm and the brake pedal, which is stiffer and more resistant than before.
The 2025 models also feature an updated design for the connecting sleeve between the filter housing and the throttle body. This is now a one-piece design, which avoids deformation of the duct itself thanks to the use of more rigid and resistant materials.
In the suspension department, the WP XACT AER fork has an updated configuration to match the new bending characteristics of the frame, while the WP XACT monoshock is now connected to the swingarm with new lighter, smoother and stronger links, developed directly by the KTM Factory Racing Team.
The SX and SX-F 2025 are equipped with Dunlop GEOMAX MX34 tires, which provide the highest level of stability and control in all conditions and feature a new casing compound that improves damping and absorption, as well as increasing tire life by 30%. In addition, the new Progressive Cornering Block technology increases traction, grip and ground clearance.
Moving on to the specifications of the various models, the main novelty within the 2025 range is the return of the KTM 150 SX. A natural evolution of its little sister, the KTM 125 SX, the new bike has been specially developed for riders passionate about 2-stroke motorcycles in search of affordable performance and an excellent feeling of lightness.
As with all KTMs, a wide range of original KTM PowerParts has been developed for the new MY25. One of these is the Connectivity Unit Offroad (CUO), the system that can be used to adjust engine behavior and frame configuration via the KTMconnect app, depending on the rider’s preferences. CUO consists of two parts: a control unit mounted on the right fork – between the lower and upper steering plate – and the GPS sensor built into the front mudguard, which is also available as a KTM PowerParts.
The SX and SX-F 2025 models will arrive at KTM dealerships from June 2024