At MSV Racing Powersports, we’ve tested every major reed valve on the market—and even some obscure ones—in our mission to find the best performance upgrade for your Honda CR500. One product continues to stand out for CR500 builds focused on maximum throttle response, air velocity, and horsepower: the Boyesen RAD03A Valve CR500.
Bolt-On Power. No Mods. No Compromise. Just the Best CR500 Performance Parts
Why Choose the Boyesen RAD03A Valve?
Your CR500 engine demands serious airflow—over 200 gulps per second at speeds beyond 500 MPH. The Boyesen RAD03A Valve meets that demand with its one-piece precision casting, continuous aeroform surfaces, and no-compromise bolt-on design. This Honda CR500 reed valve upgrade is THE BEST reed valve for the CR500!
Where other reed valves require cutting your intake boot or changing flange patterns, the Boyesen RAD03A Valve installs with zero modification—making it the cleanest, most effective way to boost your CR500’s intake performance.
Part Number: RAD03A
Key Features:
- Evenly distributes the intake charge across all ports
- Increased throttle response and high-velocity airflow
- One-piece bolt-on design for easy installation
- Tailor-made fitment for 1990–2001 Honda CR500R
- No cutting or permanent modifications required
Whether you’re building a track weapon or just want to uncork your CR500’s full potential, the Boyesen RAD03A Valve delivers reliable, tested, race-proven results.
Order today from MSVRacingPowersports.com and take your CR500’s intake performance to the next level!
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