The radiators also feature special protectors that serve not only as protection from flying rocks and debris but also as a brace that disperses energy around the radiators in the event of an impact. By using CFD technology (computational fluid dynamics) together with a clever coolant circuit routing, the innovative system ensures the optimum engine temperature for the highest performance, no matter what the conditions. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics. The KTM 250 SX features radiators which are positioned for a lower center of gravity. Cooling: Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride.The crankshaft is situated in the perfect position to centralize mass, contributing to better agility and handling. It is ideally balanced and with the added aid of a counter balancer shaft, minimum vibration is guaranteed. Crankshaft: At the heart of the engine, the crankshaft delivers a 72 mm stroke that produces optimal torque and revs.Ignition: All 2-stroke models feature a CDI control unit with advanced hardware that improves the starting behavior of the engine.Additionally, the BREMBO hydraulic system provides easy and precise clutch modulation. The diaphragm spring is also compact enough to allow for a damping system to be integrated into the clutch hub, contributing to better traction and durability. It uses a diaphragm spring instead of the usual coil springs, which results in considerably easier clutch action. Clutch: The KTM 250 SX is fitted with the extremely durable, KTM-developed DDS clutch (damped diaphragm steel), with a wear-free steel basket and heat resistant clutch plates.The settings on the 38 mm flat slide carburetor perfectly suit the airbox and exhaust design, providing smooth, controllable power all the way through the rev range. Carburetor: The KTM 250 SX is fitted with a MIKUNI TMX carburetor.This means you can keep charging harder for longer. This engine design allows for the addition of a lateral balancer shaft, which helps keep engine vibrations to a minimum. Balancer Shaft: No more numb hands and feet.Similar to the foot peg design, it prevents the build-up of dirt and ensures the next gear is always available, no matter what the conditions. The gearbox also features a 'no-dirt' gear shifter. The gear ratios were developed specifically to match the power delivery of the 250 cc engine. Transmission: The engine has a strong 5-speed gearbox built to suit any kind of motocross track.The engine covers feature a smart surface structure that reduces wear caused by the rider's boots, keeping them looking as fresh as the day you bought it. The design allows for optimal shaft arrangements closer to the center of gravity, resulting in perfect mass centralization and easier rideability. Crankcases And Engine Covers: The compact engine cases are manufactured using a high pressure die-cast production process that helps with weight reduction, while retaining strength and durability.The lateral cylinder head brackets are made of aluminum and reduce vibration to levels of near insignificance. By using the two supplied springs, the power characteristics can be changed quickly and easily, ensuring optimal settings for different tracks and rider preference. The exhaust port is machined for precise power valve function, providing excellent overall power delivery. Cylinder: The cylinder on the KTM 250 SX has a bore of 66.4 mm and is fitted with a Twin-Valve powervalve system.Powering through its 5-speed transmission truly is an exhilarating experience. It has a twin-valve controlled power valve, which contributes massively to making the KTM 250 SX engine the most competitive 2-stroke in its class. Engine: The engine of the KTM 250 SX features the latest 2-stroke technology, with a counter-balance shaft for low engine vibration, as well as a reliable hydraulically operated DDS clutch.

Ktm 250 sx weight