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 necessary – a 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 replica of the motorcycle boxer engine to life. If you love motorcycles, you will love this kit!The 1970er radial engine conesThe BMW R 90 S is one of the most fascinating motorcycles on our roads. It came to the market in 1973 and inspired the motorcycle fans from the very beginning. It was one of the fastest serial motorcycles of its time and the top model of the famous Stroke Six series from the Bavarian motorcycling forge.A special feature of the series was the transmission – for the first time BMW equipped its motorcycles with a 5-speed transmission. The top model R 90 S convinced its drivers mainly by its sporty character. Numerous important racing victories testify to the well thought-out and powerful concept of the motorcycle and its boxer engine.The Franzis kit brings the famous two-cylinder boxer engine of the R 90 S as transparent functional model in the scale 1:2 on your desk. Assemble and screw the model together and experience the detailed interaction of the 5-speed transmission with the engine.Motorcycle technology for understandingFor all technology and motorcycle fans, the kit is an absolute highlight. First build your own model step by step and then experience the operation of the individual components. The built-in motor model is also an eye-catcher thanks to its elegant design! Show that you have an engineer! • Original motor sound thanks to integrated sound module• transparent casing for a fascinating view into the interior• Crankshaft, piston, cylinder, switchable 5-speed transmission … everything moves• Ignition sparks are simulated with LEDs• with platform for setting up• Model dimensions: Approx. 160 mm width x 355 mm height x 465 mm depthThe ideal gift for all BMW fansThe engine of the BMW R 90 S is a flagship of German engineering. The BMW top-of-the-range model drove it to top performance in an elegant and powerful manner. Experience the fascination of motor technology and give yourself or your loved ones. Thanks to the transparent design, you can understand the function of the legendary unit!High-quality accompanying bookThe kit contains a high-quality, two-piece accompanying book with 120 large-format pages, which was created exclusively for the function model. On the first 60 pages you will find exciting background information on BMW motorcycle history, the boxer engine and the BMW R 90 S.Thanks to numerous illustrations and graphics, you get an even more intensive insight into the development and success story of the legendary bike.Companion Book Topics:• BMW motorcycle and the boxer engine• the boxer engine as a universal genius• BMW series /5, /6 and /7• the BMW R 90 S – the first BMW Superbike• the BMW R 90 S in racing• the BMW Motorcycle-Boxer engine todayIn the second part of the accompanying book you will learn on 60 pages how to build the kit. Step by step, the detailed and continuously illustrated instructions guide you through the structure of the model in a comprehensible way.The approximately 200 parts can be built in around three to four hours to form a functional boxer engine for your desk.This text is machine translated.