The BMW R90S would be in my opinion, would have to be the ultimate classic BMW motorcycle to own. Launched in 1973 the R90S had a 67hp, 898cc overhead valve, flat opposed twin and was the ultimate 1970's BMW sports bike and also the best of the classic old style boxer twins. The R90S was also a major surprise to everyone, having a very hot engine for a BMW, with pumper slide 38 Dell'Orto carburettors, it had a surprising turn of speed of a 130 mph and even won production races.
Way before their time, all BMW R90's came with beautiful two-tone paintwork, that has never been copied since. IT had very sleek styling, which was very unusual for a BMW of that era, and a small cockpit fairing for rider protection. Sadly production of the BMW R90S only ran for three years from 1973 to 1976, which would make this one of the best classic BMW motorcycles to own.Photo by BMW Motorrad/Arnold Debus