The 2013 KTM 450 SXF

The 2013 model KTM 450SX-F represents a new SX generation. Above all, the ergonomics and function of the plastics have been designed in such a way that the whole chassis and engine package forms a perfect harmony with the rider down to the very last detail. The fuel tank and spoiler have been restyled along with the airbox cover and the front fender, including the front number plate. A particular highlight is the new front fender, which has no ribbing on the inside, to prevent mud build-up. A pioneering structure and improved attachment of the fender to the triple clamp result in up to 50% greater lateral stiffness. 

The engine arrive with 449.3 cm³ (27.418 cu in) SOHC SX-F, 1-cylinder, 4-stroke engine, water-cooled, engine lubrication used pressure circulation lubrication with two Eaton pumps, ignition contactless controlled fully electronic ignition with digital ignition adjustment, clutch used multidisc clutch in oil bath/hydraulically activated and 5 - speed of transmision.

The 2013 KTM 450SX-F used modern frame design of lightweight, high-strength, chromoly steel section tubes guarantees an ideal mix of longitudinal and torsional stiffness, resulting not only in easy handling and precise steering behavior, but also in excellent ride stability. The four-stroke frames in MY 2013 feature a stiffer frame triangle and thinner-walled down tubes. This leads to an improvement in tracking stability (increased torsional stiffness) accompanied by a reduction in weight. The engine braces to the cylinder head have also been optimized, along with their attachment to the frame.

This bike also used aluminum swingarm. Its has been developed with state-of-the-art calculation and simulation software and constructed, in terms of design and wall thickness, for minimum weight with optimum stiffness and sufficient flex. For the 2013 model year, engineers have redesigned the rear section of the swingarm to allow installation of a thicker rear wheel axle (25 mm (0.98 in) instead of 20 mm (0.79 in)) for the benefit of better tracking stability.

The fork used 48 mm (1.89 in) upside-down fork featuring closed-cartridge technology has been optimized with completely revamped settings developed in the United States for perfect harmony with the new frame and engine. The new oil is significantly more wear-resistant and guarantees more consistent damping throughout both the course of a race and the bike's life cycle. A new lower triple clamp is 80 g (2.82 oz) lighter and, just like the upper triple clamp, CNC-machined from high-quality aluminum, whereby the steering characteristics, and hence, the responsiveness of the fork have been noticeably improved.