Fascinating kit with a switchable 5-speed gearbox. With around 200 plastic parts, you can assemble your own motorcycle boxer engine in about three to four hours without the need for glue - ensuring a pleasant modeling experience. The functional model is movable: the crankshaft, cylinders, and pistons work together realistically, just like in the full-sized version. The ignition sparks in the cylinders are simulated by LEDs. Thanks to the transparent design, you can observe the assembly, functionality, and mechanics of the 1:2 scale two-cylinder engine during assembly and from the outside while it is in motion. A highlight is the detailed and switchable 5-speed gearbox. Additionally, the functional model includes a sound module with a recording of the original engine. You can activate the sound at the push of a button.