When the new generation of motorcycles was presented in 1983 with the longitudinal four-cylinder inline engine, BMW was taking a great stride forward. The entire powertrain with engine, gearbox bolted directly to the engine and the proven single swing arm with integrated drive shaft formed a single unit designated as the "Compact Drive System" by BMW. The unfaired BMW K 100 was the basic model for the new series and was capable of being upgraded with BMW accessories entirely to customers' specifications. The dynamic ride qualities transformed the K models into a model of success crucial for the future of BMW as a motorcycle manufacturer.
BMW K 100

Production
1983 - 1990
Displacement
987 cc
Performance
66 kW (90 hp) at 8,000 rpm
Price
12.490,- DM
Engine Type
Four-cylinder in-line engine
Top Speed
215 km/h (132 mph)