Description
If you’re chasing lap times on a CR250, your reed valve system is the gatekeeper to throttle response and power delivery. The Boyesen Pro Series Reed delivers lightning-quick piston speed compensation with a carbon fiber top reed paired to a reinforced fiberglass/epoxy bottom reed—giving you the acceleration advantage without the durability penalty of traditional carbon fiber designs. This is the reed set that maximizes both horsepower and torque while keeping throttle response crisp and predictable.
- Carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Dual-stage reed design
- Boyesen exclusive technology
- Quick piston speed response
- Maximizes horsepower output
- Maximizes torque output
- Enhanced throttle response
- Extended reed life
- Cylinder set—one required
- Fits CR250 ’02 models
- MPN: PRO-163









