In spring 1951, BMW presented the BMW R 67, the first BMW motorcycle of the postwar period with a displacement of 600 cc. The motorcycle's running smoothness and handling were praised in the trade press although there were also critical voices which primarily focused on the criticism that the simplex front-wheel brake was supposed to lack power when the motorcycle was ridden in a sidecar combination. Already in December of the same year, therefore, the first units of the BMW R 67/2 model revision rolled off the production line in Munich. An additional two hp and new duplex brakes were the most important differences compared with the BMW R 67.