Description
The Boyesen Radiator Valve optimizes intake charge distribution across your RM125’s cylinder head, eliminating dead zones that rob you of peak horsepower. By maintaining consistent flow velocity through a precisely engineered reed system, this valve sharpens throttle response and builds torque across the entire RPM band. One-piece cast aluminum construction bolts directly onto your engine—no fabrication required.
- Dual-stage reed design
- Patented Boyesen technology
- Cast aluminum construction
- Bolt-on installation
- One valve per cylinder
- Improves throttle response
- Increases horsepower output
- Enhanced torque delivery
- RM125 ’01 fitment
- MPN: RAD21G
