KTM the war, demand for repair works fell sharply and Trunkenpolz started thinking about producing his own motorcycles. The prototype of his first motorcycle, the R100, was built in 1951. The components of the motorcycle were produced in house, except for the Rotax engines which were made by Fichtel & Sachs. Serial production of the "R100" started in 1953. With just 20 employees, motorcycles were built at the rate of three per day. In 1953, businessman Ernst Kronreif became a sizable shareholder of the company which was renamed and registered as "Kronreif & Trunkenpolz Mattighofen". In 1954, the "R125 Tourist" was
MBK (Scooter manufacturer) scooters became the company's core business. Over the past decade MBK scooters have played a major part in the European scooter sales boom. Market leader in France, MBK is also a best-seller in Italy with significant stakes in the German, Belgian, Swiss, Portugal, Greek, UK, Irish, Austrian, Spanish and Finnish markets. One of the company's more popular model range is the MBK Booster. It is sold with a 50cc or 125cc motor. MBK (Scooter manufacturer) MBK (), a subsidiary of Yamaha Motor Company, is a French Scooter manufacturer, based in Rouvroy, Picardy, France. The company was first established in 1923