THIS 6MM X 110MM LONG BOLT HOLDS THE ROUND CAM COVER ON ALL 50'S AND 70'S. IT TAKES A COPPER WASHER SOLD SEPARATELY IN THIS SAME SECTION # (29E) NOW SEE 278X BELOW @ *BOLT, HEX, 6X110 7/18M (278X)fits these and others: Honda TRX70 1986, 1987 Honda TRX90 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Honda TRX90EX 2007, 2008 Honda TRX90X 2009, 2012, 2013, 2014, 2015 Honda XR50R 2000, 2001, 2002, 2003 Honda XR70R 1997, 1998, 1999, 2000, 2001, 2002, 2003 Honda XR80R 1985, 1986, 1987, 1988, 1990, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Honda Z50R 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 Honda Z50RD 1986 Honda ZB50 1988 Honda CT70 1991, 1992, 1993, 1994 278X