http://www.economypoint.org/k/ktm-motorcycle-manufacturer.html Bit if info here on KTM. Looks like they started making rads after one of the several re-organizations. Not really a smooth road, that's for sure. "1954 begin the series production of motorcycles, whereby the enterprise almost all components, as produces brakes and radiator. The engines came from Puch, for the export variants of Fichtel & Sachs." "KTM radiator GmbH KTM radiator develops and produces since 1984 cooling systems for the automobile and motorcycle industry as well as for stationary plants. At the production location Mattighofen/Austria are busy over 350 coworkers. Additionally KTM radiator maintains selling partnerships in Germany, Italy and the USA."