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
Brennan Motor Manufacturing Company Brennan Motor Manufacturing Company Brennan Motor Manufacturing Company (1897–1972) of Syracuse, New York, was an early manufacturer of automobile engines. From 1902 until 1908, the company produced the Brennan automobile however, after the demise of the automobile enterprise, the company again turned their focus to automobile engines and later marine engines. They were in business for 75 years when the company closed its doors in 1972. The company was founded in 1897 by Patrick H. Brennan (1865 - January 22, 1934) and was known as Brennan Motor Manufacturing Company or Brennan Motor Company. The company motto was "Simplicity and durability."