Motorcycles Motocross DX41479934739190619014410 DX1 . 2012 KTM 450 SX-F Factory Edition 450 SX-F Factory Edition the KTM 450 SXF Factory Edition is a new model of dirt bike that comes with a new 450 SX-F engine and chassis. the 449.3 cc engine is fuel-injected has a single cam is lightweight and a four-stroke. It also has been given a new frame bodywork seat cover sprocket on the rear rims and software to adjust the injection and ignition for RPM range...