Description
A reed valve system is only as good as its ability to respond to your engine’s demands—and the BOYESEN Pro Series PSR-197 delivers precision throttle response that translates directly to faster acceleration and more usable horsepower across the RPM range. By combining carbon fiber’s lightweight responsiveness with a reinforced fiberglass base, this dual-stage design eliminates the premature wear issues that plague traditional carbon fiber reeds, giving you the performance gains without the reliability compromises. If you’re running a RAD40 and serious about maximizing both power and longevity, this is the reed upgrade that pays for itself in lap times.
- Carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Dual-stage patented design
- Rapid piston speed response
- Improved throttle accuracy
- Maximum acceleration capability
- Extended reed life
- RAD40 specific fitment
- MPN: PSR-197
