I designed this for my 1992 CR250. I believe it will fit the years and models listed below. It seems to work perfect so far, I'll update if anything changes.

2007 - CR125R
2007 - CR250R
2006 - CR125R
2006 - CR250R
2005 - CR125R
2005 - CR250R
2004 - CR125R
2004 - CR250R
2003 - CR125R
2003 - CR250R
2002 - CR125R
2002 - CR250R
2001 - CR500R
2001 - CR125R
2001 - CR250R
2000 - CR500R
2000 - CR125R
2000 - CR250R
1999 - CR500R
1999 - CR125R
1999 - CR250R
1998 - CR500R
1998 - CR125R
1998 - CR250R
1997 - CR500R
1997 - CR125R
1997 - CR250R
1996 - CR500R
1996 - CR125R
1996 - CR250R
1995 - CR500R
1995 - CR125R
1995 - CR250R
1994 - CR500R
1994 - CR125R
1994 - CR250R
1993 - CR500R
1993 - CR125R
1993 - CR250R
1992 - CR500R
1992 - CR125R
1992 - CR250R
1991 - CR500R
1991 - CR125R
1991 - CR250R
1990 - CR500R
1990 - CR125R
1990 - CR250R
1989 - CR500R
1989 - CR125R
1989 - CR250R

Yes

100