The secret features of R51/2 : BMW R51/2 Restoration (2)

R51/2 was produced in only 2 years of 1950 to 1951 which was the postwar period without much resources. It is the legacy of the postwar turmoil, it combines crankcase(twincam) in prewar and valve using modern valve-spring.

For the ignition coil,it has adopted the high voltage ignition system as same level as four-wheeled vehicles using a distributor.