The latest carbon fiber technology with all the advantages of Boyesens patented dual-stage reed design. Utilizes a carbon fiber top reed and a durable fiberglass/epoxy bottom reed. Offers the quickest acceleration any reed can offer; maximizes horsepower and torque. Responds quickly and accurately to changes in piston speed for smooth dependable throttle response. No sacrifice in reed life like traditional carbon fiber reeds. Designed for the newest 2-stroke technologies. This item fits H-D the following vehicle applications: fits HON ATC250R 1981-1986 fits HON CR250R 1978-1987 fits HON CR450R 1981 fits HON CR480R 1982-1983 fits HON FL250 Odyssey 1977-1984 fits HON FL350R Odyssey 1985 fits HON FL400R Pilot 1989 fits HON TRX250R 1986-1989 fits HON TRX250X 1987-1988 fits KAW KDX200 1983-2006 fits KAW KDX220R 1997-2005 fits POL 300 2x4 1994-1995 fits POL 300 4x4 1994-1995 fits POL 400L 2x4 1994-1995 fits POL 400L 4x4 1994 fits POL Cyclone 250X 1987 fits POL Scrambler 250 1985-1986 fits POL Scrambler 400 2x4 2000-2002 fits POL Scrambler 400 4x4 1995-2002 fits POL Sport 400L 1994-1999 fits POL Sportsman 300 2008-2010 fits POL Sportsman 400 2001-2005 fits POL Sportsman 400 4x4 1993-1996 fits POL Sportsman 400 HO 2008-2014 fits POL Sportsman 400 HO South Edition 2013-2014 fits POL Sportsman 400L 1997 fits POL Trail Blazer 250 1990-2006 fits POL Trail Blazer 400 2003 fits POL Trail Boss 250 1991-1999 fits POL Trail Boss 250 2x4 1988-1993 fits POL Trail Boss 250 4x4 1987-1993 fits POL Trail Boss 250R/ES 1985-1988 fits POL Trail Boss 300 2x4 1995 fits POL Trail Boss 300 4x4 1995 fits POL Trail Boss 350L 2x4 1990-1993 fits POL Trail Boss 350L 4x4 1990-1993 fits POL Xplorer 250 4x4 2000-2002 fits POL Xplorer 300 4x4 1996-2001 fits POL Xplorer 400 4x4 1995-2001 fits POL Xplorer 400L 2002 fits POL Xpress 300 1996-1999 fits POL Xpress 400L 1996-1997 fits SUZ RM250 1987-1988