The Pirelli Scorpion? MTB range was born from Pirelli's experience and know-how in the world of off-road competitions. Rally and motocross are an integral part of our DNA and were the starting point for the research and development that culminated with the Scorpion? MTB. The shape of the knobs was based on the experience and technology behind the Scorpion? MX range, which has been used on every motocross and supercross race circuit in the world, winning more than 65 world titles.