Boyesen Rad Valve Honda Cr500 85-89 Moto 3.5 RFX Race Series Pro Bolt

RFX Race Series Pro Bolt Pack (OEM Style) Honda CR/CRF 02-19

Fitments: YAMAHA 1991-1992 YZ125/YZ250

Established in 1977 amidst the scenic landscapes of Tuscany

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Boyesen Rad Valve Honda Cr500 85-89 Moto 3.5 RFX Race Series Pro BoltThe 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