Description
The reed valve is where combustion efficiency begins. Boyesen’s dual-stage reed design maximizes flow velocity across the entire operating pressure range, translating directly to stronger power delivery from idle through peak RPM. If you’re running an RM250 and serious about extracting every bit of performance, this is the upgrade that delivers measurable gains.
Laboratory flow analysis confirms what racers already know: factory reeds leave performance on the table. The 6114 addresses this with precision engineering that keeps intake timing optimal, whether you’re launching hard or holding top end. Installation is straightforward, making this one of the highest-return bolt-on modifications available for your machine.
- Dual-stage reed design
- Enhanced flow velocity
- Improved startup response
- Optimized acceleration curve
- RM250 ’03 fitment
- Bolt-on installation
- Laboratory flow tested
- Boyesen engineering
- MPN: 6114
