BMW Final Drive Crown Bearing Small 33121450481 K Brick 1983-2009 R1100/1150 1994-2005Factory BMW Crown Gear Tapered Bearing for Final Drive (Small Tapered Bearing) 33121450481 25 ID X 52 OD X 16. 25 mm R80GS 1980 1987 R80ST 1982 1984 R100GS 1987 1995 R100R 1991 1995 Fits All K Brick Engine Bikes 1983 2009 K2V Models K100 1983 1986 K100RS 1984 1989 K100RT 1984 1988 K100LT 1986 1991 K75 1985 1990 K75C 1985 1990 K75RT 1985 1995 K75S 1986 1994 K4V Models K100RS 1990 1992 K1 1989 1992 K1100RS 1992 1996 K1100LT 1992 1997 K1200RS 1997 2004