Gold O-Ring Chain & Silver Sprocket 14/40 92L 1988-2006 Yamaha YFS 200 Blaster 14 Tooth Front Sprocket, 40 Tooth Rear Sprocket and 520-92L Gold O-Ring Chain All Race-Driven sprockets meet or exceed OEM specifications and use hardened S45C steel. O-Ring Chain helps keep the pins lubricated which reduces friction and helps the chain last longer. Fits 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Yamaha YFS200 Blaster