Description
The BOYESEN Radiator Valve optimizes intake charge distribution across your KTM 65SX’s cylinder, delivering sharper throttle response and measurable horsepower gains throughout the entire RPM range. By maintaining consistent flow velocity and redirecting the intake charge evenly to all ports, this valve eliminates dead zones that rob performance. If you’re serious about extracting every bit of power from your two-stroke, this is a fundamental upgrade that separates competitive builds from stock setups.
- Dual-stage reed design
- One-piece cast aluminum
- Bolt-on installation
- Increased torque delivery
- Improved throttle response
- Even port distribution
- MPN: RAD-40B
- One per cylinder






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