At the beginning of the thirties the economic situation dictated the need for a more affordable alternative to the twins which arrived in the form of the 198cc R2. This was not their first single - they had introduced the 250cc R39 in 1925.
The new model incorporated features found on the twins, including unit construction for the engine, a three speed gearbox and shaft drive, along with a pressed steel duplex frame equipped with similarly constructed forks. Developing up to 6 bhp, the new model would remain in production until 1936 and formed the basis for later, larger displacement singles.
BMW R-2 Series 1 from 1931
BMW R-2 Series 2A from 1932
BMW R-2 Series 2/33 from 1933
BMW R-2 Series 3 from 1934
BMW R-2 Series 4 from 1935
BMW R-2 Series 5 from 1936