Fascinating kit with switchable 5-speed transmissionThe transparent functional model as a kit is an absolute highlight for all technology and motorcycle fans. With the approx. 200 plastic components you can attach and screw together your own motorcycle boxer engine within about three to four hours. No gluing is necessarya pleasant modeling experience is guaranteed!The functional model is movable: So the crankshaft, cylinder and piston work in a realistic interaction as with the large prototype. The ignition sparks in the cylinders are simulated by LEDs. Thanks to the transparent design, you can first understand the structure, the function and the mechanics of the two-cylinder motor in the scale 1:2 during assembly, then from the outside during movement. The highlight is the detailed and switchable 5-speed transmission.In addition, a sound module with a sound recording of the original motor is integrated in the functional model. At the push of a button, you can bring the detailed rep