Description
If you’re running a RM250 two-stroke, your reed valve design directly impacts throttle response, acceleration, and peak horsepower. The Boyesen Pro Series Reed eliminates lag and inconsistency by pairing a high-tech carbon fiber top reed with a reinforced fiberglass/epoxy bottom reed, giving you the responsiveness of carbon fiber without premature wear. This dual-stage design responds instantly to piston speed changes, translating to quicker acceleration and measurable gains in both horsepower and torque across the RPM range.
- Carbon fiber top reed
- Fiberglass/epoxy bottom reed
- Dual-stage reed design
- Boyesen exclusive technology
- Quick acceleration capability
- Smooth throttle response
- RM250 ’03 specific fitment
- One set per cylinder
- Extended reed life
- Maximizes horsepower/torque
- Reduced piston lag
- MPN: PRO-189









