Boyesen Rad Valve Yamaha Yz250 97-98 Soft Please look at our sizing

Please look at our sizing chart for best fit: S-XXL

KTM SX360 96-97 front

· Yamaha WR250F / WR450F 2017

If you need something that is not so vented

1/2 inch drive

Boyesen Rad Valve Yamaha Yz250 97-98 Soft Please look at our sizingThe 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