BMW began as an aircraft engine manufacturer in the early 20th century and flourished through World War The company manufactured its first motorcycle in 1923, the R32.
The R32 featured a flat-twin boxer engine. BMW still uses a variant of the flat-twin boxer configuration.
Dubbed the M2B33, the engine in the R32 displaced 486 cc and had a cast-iron sidevalve cylinder head unit. Producing just 8.5 hp the R32 could reach a top speed of 59 mph.
