JT Steel Sprockets are the OEM quality choice, manufactured using only the finest grade of C49 high carbon steel for the rear sprockets, and SCM420 chromoly steel alloy for the front sprockets.
Fits:

Honda CR80R 1986, Honda CR80R 1987, Honda CR80R 1988, Honda CR80R 1989, Honda CR80R 1990, Honda CR80R 1991, Honda CR80R 1998, Honda CR80R 1999, Honda CR80R 2000, Honda CR80R 2001, Honda CR80R 2002, Honda CR80R 2003, Honda CR80R BW 1997, Honda CR80R BW 1998, Honda CR80R BW 1999, Honda CR80R BW 2000, Honda CR80R BW 2001, Honda CR80R BW 2002, Honda CR80RB 1997, Honda CR80RB 1998, Honda CR85R 2003, Honda CR85R 2004, Honda CR85R 2005, Honda CR85R 2006, Honda CR85R 2007, Honda CR85R 2008, Honda CR85R 2009, Honda CR85RB BW 2003, Honda CR85RB BW 2004, Honda CR85RB BW 2005, Honda CR85RB BW 2006, Honda CR85RB BW 2007, Honda CR85RB BW 2008, Honda CR85RB BW 2009, Honda CRF50F 2004, Honda CRF50F 2005, Honda CRF50F 2006, Honda CRF50F 2007, Honda CRF50F 2008, Honda CRF50F 2009, Honda CRF50F 2010, Honda CRF50F 2011, Honda CRF50F 2012, Honda CRF70F 2004, Honda CRF70F 2005, Honda CRF70F 2006, Honda CRF70F 2007, Honda CRF70F 2008, Honda CRF70F 2009, Honda CRF70F 2010, Honda CRF70F 2011, Honda CRF70F 2012, Honda XR50R 2000, Honda XR50R 2001, Honda XR50R 2002, Honda XR50R 2003, Honda XR50R 2004, Honda XR70R 2000, Honda XR70R 2001, Honda XR70R 2002, Honda XR70R 2003