 Production continued in China through the mid-1980s, making the M72 the vehicle with the longest production life, from The BMW R71 in 1938, to current day Chang Jiang CJ750.M-72 motorcycles were predominantly produced with a sidecar attached, although some solos made appearances for escort duties and the like.M-72 were produced at IMZ in Irbit from 1942 until 1955.