Description
If you’re running a KX500, your reed valve design directly controls how quickly your engine responds to throttle input and how much power you can extract at peak RPM. The Boyesen Pro Series Reed delivers measurably faster piston speed response through its exclusive dual-stage carbon fiber and fiberglass construction, giving you the acceleration and horsepower gains you need to stay competitive. Unlike traditional full-carbon reeds that wear prematurely, this proven design maintains durability without sacrificing performance.
- High-tech carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Dual-stage reed design
- Quickest acceleration available
- Maximizes horsepower and torque
- Rapid piston speed response
- Smooth, dependable throttle response
- Extended reed life
- One set per cylinder
- Sold as complete cylinder set
- Boyesen Pro Series quality
- KX500 specific fitment
- Bolt-on installation
- MPN: PRO-45






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