Boyesen Rad Valve Yamaha Yz85 02-21 Tyre Tools Tube port – if using

Tube port – if using the USWE helmet handsfree kit (kit not included with the pack)

take a look at the 2

Your original reeds can't possibly duplicate that performance

FC 350 14-23

The Bottom Fork Guard is model specific and can be used individually

Boyesen Rad Valve Yamaha Yz85 02-21 Tyre Tools Tube port – if usingThe 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