Whether its power-to-weight or power and control, the KTM 250 SX is the perfect combination of all that counts. Featuring a high-performance 2-stroke engine fitted within a state-of-the-art chassis, this powerhouse is undoubtedly the fastest 250 cc 2-stroke on track. This proven race weapon is the right choice for those who thrive on that glorious 2-stroke sound while smashing out one hot lap after the next.
CYLINDER
The cylinder of the KTM 250 SX with a 66.4 mm bore is fitted with a sophisticated TVC power valve, featuring a machined exhaust port, which guarantees a strong power delivery. The bike's power curve can be changed in a matter of seconds using the two power valve springs supplied, enabling the rider to optimize settings for different track conditions and to suit his own personal preferences.
CARBURETOR
The 38 mm flat slide carburetor provides smooth and controllable performance throughout the entire rpm range. The setting has been matched perfectly to the engine, air filter box and exhaust system. As a result, the engine's throttle response is instantaneous, and the smooth power delivery is a dream.
ENGINE
The 2-stroke engine of the KTM 250 SX is regarded as the most powerful engine in its class. Fitted with a TVC (twin valve control) power valve, a balancer shaft to reduce vibrations, a 5-speed transmission and a hydraulic DDS clutch, it is setting the standards in its segment. As a result of modifications to the cylinder and exhaust system, this compact powerhouse shames the competition with outstanding performance and agility, and is the right choice for all those who love that typical 2-stroke sound and low purchasing and maintenance costs.
