[LakeCleElum]

In 1995, BMW ceased production of airhead 2-valve engines and moved its boxer-engined line completely over to the 4-valve oilhead system first introduced in 1993.

During this period, BMW introduced a number of motorcycles including:

R Series (airheads) - R65GS, R80GS, R100GS,
R Series (oilheads) - R850R/GS/C, R1100R/RS/RT/GS/S, R1150R/RS/RT/GS/S, R1200C
F Series - F650 Funduro, F650ST Strada, F650GS, F650GS Dakar, F650CS Scarver
K Series - K1, K100, K100RS, K100RT, K75, K75C, K75S, K75RT, K1100RS, K1100LT, K1200RS, K1200LT, K1200GT.

Like Air-heads: Clutch replacement is expensive compared to other motorcycles....Trans output shaft can leak down the drive shaft tube and no apparent leaks till Trans runs dry....Rear wheel bearings a known issue.....PPI is your friend.