Description
Your RM250’s throttle response is only as good as your reed valves. The BOYESEN Pro Series Reed delivers genuine gains in acceleration and peak power by responding instantly to piston speed changes—giving you the crisp, predictable power delivery that separates competitive engines from the rest. Built from high-tech carbon fiber with Boyesen’s proven dual-stage design, these reeds maximize horsepower and torque without the premature wear that plagues traditional carbon fiber alternatives.
Sold as a cylinder set, one set per cylinder is required for complete coverage on your ’04-’08 RM250.
- Carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Dual-stage reed design
- Quick piston speed response
- Extended reed life
- Maximizes horsepower output
- Maximizes torque output
- RM250 ’04-’08 fitment
- Boyesen PRO-210 MPN
- One set per cylinder
- Bolt-on installation









