The Boyesen RBK-12 Motorcycle Rad Valve Boot is designed to provide a reliable connection between the intake system and reed valve assembly on compatible Honda CR500R motorcycles. Manufactured by Boyesen, this replacement boot supports proper intake sealing and helps maintain consistent air delivery to the engine.
Designed for fitment on 1990–2001 Honda CR500R models, the Boyesen RBK-12 is a practical replacement for a worn, cracked, or deteriorated valve boot. A secure connection helps reduce the risk of air leaks that can affect throttle response, engine performance, and tuning. This component is well suited for maintenance, restoration, and performance-focused motorcycle applications.
Manufacturer part number: RBK-12. Vendor part number: RBK-12. Verify the motorcycle year and model before ordering to ensure correct fitment.
Features:
- Fitment: Fits 1990–2001 Honda CR500R motorcycles
- Product type: Motorcycle rad valve boot
- Brand: Boyesen
- Manufacturer part number: RBK-12
- Vendor part number: RBK-12
- Application: Designed to support a secure intake and reed valve connection
- Replacement use: Suitable for replacing a worn or damaged valve boot
Fitment:
1986 Honda CR250R
1987 Honda CR250R
1988 Honda CR250R
1989 Honda CR250R
1990 Honda CR250R
1990 Honda CR500R
1991 Honda CR250R
1991 Honda CR500R
1992 Honda CR250R
1992 Honda CR500R
1993 Honda CR250R
1993 Honda CR500R
1993 Suzuki RMX250
1994 Honda CR250R
1994 Honda CR500R
1994 Suzuki RM250
1994 Suzuki RMX250
1995 Honda CR250R
1995 Honda CR500R
1995 Suzuki RM250
1995 Suzuki RMX250
1996 Honda CR250R
1996 Honda CR500R
1996 Suzuki RMX250
1997 Honda CR250R
1997 Honda CR500R
1997 Suzuki RMX250
1998 Honda CR250R
1998 Honda CR500R
1998 Suzuki RMX250
1999 Honda CR250R
1999 Honda CR500R
2000 Honda CR250R
2000 Honda CR500R
2000 Kawasaki KX125
2001 Honda CR500R
2005 Honda CR250R
2005 Kawasaki KX250
2006 Honda CR250R
2006 Kawasaki KX250
2007 Honda CR250R
2007 Kawasaki KX250
2008 Kawasaki KX250
2009 Kawasaki KX250