Oilhead boxers

Beginning with the BMW R 1100 RS sports tourer in 1993, BMW began to transition from engines with air-cooled cylinder heads ("airhead" engines) to oil-cooled cylinder heads ("oilhead" engines). The BMW R 100 RS also used "Telelever" front suspension (where braking forces are transferred horizontally to minimize "fork dive") and a stressed engine. The "airhead" BMW R 80 GS and R 100 GS models remained in production until 1997, before being replaced by the newer "oilhead" models such as the BMW R 850 series, the 1994–1999 BMW R 1100 R standard motorcycle, the 1994–1999 BMW R 1100 GS dual-sport, the 1996–2001 BMW R 1100 RT tourer, the 1998–2005 BMW R 1100 S sports, and the 1999–2004 BMW R1150 GS dual-sport. The BMW R 1200 C, produced from 1997 to 2004, was BMW Motorcycle's only entry into the cruiser market.