Boyesen Rad Valve Yamaha Yz125 89-92 Sierra Time saving method maintains crank

Time saving method maintains crank shaft true during installation

By increasing the flow

Made for 7/8 handlebar size

Husqvarna TC50 17-23 rear

S2 4L TANK BAG

Boyesen Rad Valve Yamaha Yz125 89-92 Sierra Time saving method maintains crankThe 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