Boyesen Rad Valve Yamaha Yz85 02-21 Tyre Tools 250RR 13-19

250RR 13-19

with clean and straightforward lines that will match any modern motorbike

Your original reeds can't possibly duplicate that performance

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

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

Boyesen Rad Valve Yamaha Yz85 02-21 Tyre Tools 250RR 13-19The 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