2012 KTM Sx 50 Mini, A real KTM for the smallest of future MX champions. The 40 kg (88 lb.) lightweight 50 SX Mini sets the standard in terms of controllability and riding fun. It has everything that impresses riders and reassures their parents: a high-quality chassis with easily applied rotor brakes, top-quality components wherever you look and a powerful, reliable engine with easy-to-operate centrifugal clutch