Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This item fits the following applications: 2003-2007 Honda CR85R, 2003-2007 Honda CR85RB Expert, 1996-2002 Honda CR80RB Expert, 1987-2002 Honda CR80R, 1989-2001 Suzuki RM80.