An innovative construction set for assembling a motocross bike complete with working mechanical details, from the steering wheels to the reciprocating piston. Over 180 components are designed to make the construction experience richer, more precise, and more realistic. Thanks to the illustrated manual and interactive 3D instructions, children learn step by step, developing independence and constructive logic. A product that combines fun and learning: the motocross bike becomes a STEM laboratory where they can observe gears and transmissions in action. It's part of the new generation of Clementoni's Science & Play Mechanics, which takes mechanical play to the next level. Mechanics come to life. Build your own motocross bike with working wheels and gears. Not just a game, but real engineering! With over 180 components, approach the secrets of mechanics in a practical and fun way. For those who love understanding how it works. From the transmission chain to the movement of the pistons, every detail is a small (but big) discovery of the application of the principles of mechanical engineering. Guided and intuitive construction. The illustrated manual and 3D instructions make every step clear, so you can learn by doing without frustration. The new era of mechanics from Clementoni. Designed and manufactured in Italy, with more components, larger models, and a completely revamped design.