Upgrade throttle response and engine performance with Boyesen PRO-44 Pro Series Reeds. Designed with a dual-stage reed configuration, these replacement reeds help improve airflow characteristics throughout the powerband. The staged design allows faster opening and closing, supporting sharper response at low throttle while increasing intake velocity and available flow area.
The Boyesen PRO-44 is engineered as a practical performance upgrade for compatible Honda two-stroke applications. Its design can provide noticeable horsepower improvements with a relatively minor modification, while also supporting longer overall service life. The reed construction is intended to help protect the engine in the event of breakage, adding confidence for recreational riding, racing, and performance-focused use.
These Boyesen reeds fit the 1989 Honda FL400R Pilot; 1986, 1987, 1988, and 1989 Honda TRX250R; and 1981, 1982, 1983, 1984, and 1985 Honda ATC250R. Confirm the vehicle model and year before installation to ensure proper application. The manufacturer part number is PRO-44, and the vendor part number is 59-8544.
Features:
- Dual-stage reed design supports improved airflow and power delivery
- Minor modification can provide major horsepower improvements
- Faster opening and closing for responsive engine operation
- Improved low-pressure, low-throttle response
- Increased intake velocity
- Greater flow area for enhanced breathing
- Longer overall service life
- Designed to help prevent engine damage if a reed breaks
- Fits 1989 Honda FL400R Pilot
- Fits 1986-1989 Honda TRX250R
- Fits 1981-1985 Honda ATC250R
- Brand: Boyesen
- Manufacturer part number: PRO-44
- Vendor part number: 59-8544
Fitment:
1978 Honda CR250R
1979 Honda CR250R
1980 Honda CR250R
1981 Honda ATC250R
1981 Honda CR250R
1982 Honda ATC250R
1982 Honda CR250R
1982 Honda CR480R
1983 Honda ATC250R
1983 Honda CR250R
1983 Honda CR480R
1983 Kawasaki KDX 200
1984 Honda ATC250R
1984 Honda CR250R
1984 Kawasaki KDX 200
1985 Honda ATC250R
1985 Honda CR250R
1985 Honda Fl350R Odyssey
1985 Kawasaki KDX 200
1986 Honda ATC250R
1986 Honda CR250R
1986 Honda TRX250R
1986 Kawasaki KDX 200
1987 Honda CR250R
1987 Honda TRX250R
1987 Kawasaki KDX 200
1987 Suzuki RM250
1988 Honda TRX250R
1988 Kawasaki KDX 200
1988 Suzuki RM250
1989 Honda Fl400R Pilot
1989 Honda TRX250R
1989 Kawasaki KDX 200
1990 Kawasaki KDX 200
1991 Kawasaki KDX 200
1992 Kawasaki KDX 200
1993 Kawasaki KDX 200
1994 Kawasaki KDX 200
1995 Kawasaki KDX 200
1996 Kawasaki KDX 200
1997 Kawasaki KDX 200
1997 Kawasaki KDX 220R
1998 Kawasaki KDX 200
1998 Kawasaki KDX 220R
1999 Kawasaki KDX 200
1999 Kawasaki KDX 220R
2000 Kawasaki KDX 200
2000 Kawasaki KDX 220R
2001 Kawasaki KDX 200
2001 Kawasaki KDX 220R
2002 Kawasaki KDX 200
2002 Kawasaki KDX 220R
2003 Kawasaki KDX 200
2003 Kawasaki KDX 220R
2004 Kawasaki KDX 200
2004 Kawasaki KDX 220R
2005 Kawasaki KDX 200
2005 Kawasaki KDX 220R
2006 Kawasaki KDX 200