Boyesen Rad Valve Yamaha Yz250 97-98 X-Flow constantly raising the industry's standards

constantly raising the industry's standards for quality and service

· Honda CRF250R 2023

5 Junior Chest Protector scores a total of 12 points in the Leatt protection rating system

lab tested built-in fracture points

stretch fabric upper and synthetic suede palm reinforcements for high levels of comfort and improved feeling with the bike’s controls

Boyesen Rad Valve Yamaha Yz250 97-98 X-Flow constantly raising the industry's standardsThe Boyesen Rad Valve features a sophisticated array of performance attributes designed to provide peak horsepower gains, durability, and model specific performance for each make model year machine. Each Boyesen RAD Valve is unique tailor made to that model, year and displacement. With the new RC2 Rad Valve System, Boyesen engineers have created a lineage of aerodynamic intake technology by refining the primary performance factors required to increase