After the buoyant sales of the four-cylinder types in the K Series, BMW was able to present two K 75 types as a further expansion of the K Family with optimistic expectations. The BMW K 75 C featured cockpit fairing attached to the handlebars and the K 75 S boasted a sporty, frame-mounted half-shell. The basic concept (from the installation site of the engine to the patented Compact Drive System) was the same as in the K 100, whereas the three-cylinder engine was an independent development. After the K 75 basic model became the more popular version from 1986, the K 75 C was removed from the range in 1990.