Engine: 745cc 2-valve boxer twin (tuned and modified for high compression)
Production Years: 1969-1973
Number Produced: 38,370
The new range of boxer twins was revealed in late 1969. The "/5" (slash five, or stroke five) series had a new frame, 12 volt electrics with starter motor, telescopic front forks and a twin leading shoe front brake.
Initially handling was problematical at speed and a longer swingarm was fitted in late 1973.
The /6 arrived in 1974 with numerous improvements.
More on the /5 at the Bynum Archive: BMW /5