BOYESEN engineers create a new lineage of aerodynamic intake technology to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific Reed Petal Tensioning, Material Fuel Resistance, and Multi-Stage Reed Timing. Together, these innovations create a new technological benchmark in intake performance.
Each Boyesen RAD Valve is unique - tailor made to that model, year and displacement.
100% Aluminium body with aerodynamic internal surfacing
4-way aerodynamic directional dividers that distribute the angled charge evenly without flow loss
Carb boot clamp and gasket provided. No modifications required.
Rubber coated and fuel resistant reed petals to ensure a long-lasting seal
Race proven RC2 series Rad Valve results in an optimized air intake system that provides superior efficiency, peak horsepower gains, and acceleration for YOUR specific model machine
043c8df1a047dec0c5d1624bc46dc819Boyesen Rad Reed valve system - Yamaha YZ85https://www.fc-moto.com/en-en/p/boyesen-rad-reed-valve-system-yamaha-yz85-BI-360004https://www.fc-moto.com/media/91/0f/b8/1755027985/boyesen-rad-reed-valve-system-yamaha-yz85-bi-360004-figure-1.jpeg?ts=1772032909InStock244.94EUREURBI-360004043c8df1a047dec0c5d1624bc46dc819Carryoverhttps://www.fc-moto.com/media/25/f8/ac/1747906557/markenlogo-boyesen.svg?ts=1764071125truetrue["40732f05a19aaf0c79f154da26c6b469-2009","40732f05a19aaf0c79f154da26c6b469-2018","40732f05a19aaf0c79f154da26c6b469-2012","40732f05a19aaf0c79f154da26c6b469-2026","40732f05a19aaf0c79f154da26c6b469-2015","40732f05a19aaf0c79f154da26c6b469-2006","7c77a54695fd2f028b441c47762d9c70-2003","40732f05a19aaf0c79f154da26c6b469-2016","9cbc12d5dba538cc31d33e10296f20b1-2011","9cbc12d5dba538cc31d33e10296f20b1-2012","574c686cd222bd80e6b36898ce2afbc6-2026","574c686cd222bd80e6b36898ce2afbc6-2024","40732f05a19aaf0c79f154da26c6b469-2005","9cbc12d5dba538cc31d33e10296f20b1-2005","40732f05a19aaf0c79f154da26c6b469-2017","40732f05a19aaf0c79f154da26c6b469-2007","40732f05a19aaf0c79f154da26c6b469-2020","40732f05a19aaf0c79f154da26c6b469-2023","40732f05a19aaf0c79f154da26c6b469-2025","be36b4fcf6e91bd23a33bbb03a509a22-2002","574c686cd222bd80e6b36898ce2afbc6-2025","7c77a54695fd2f028b441c47762d9c70-2002","9cbc12d5dba538cc31d33e10296f20b1-2009","40732f05a19aaf0c79f154da26c6b469-2022","40732f05a19aaf0c79f154da26c6b469-2019","40732f05a19aaf0c79f154da26c6b469-2011","9cbc12d5dba538cc31d33e10296f20b1-2010","40732f05a19aaf0c79f154da26c6b469-2013","40732f05a19aaf0c79f154da26c6b469-2014","40732f05a19aaf0c79f154da26c6b469-2021","9cbc12d5dba538cc31d33e10296f20b1-2007","9cbc12d5dba538cc31d33e10296f20b1-2006","be36b4fcf6e91bd23a33bbb03a509a22-2003","744e1ffd0609c13ec6001f9c168e4cac-2004","9cbc12d5dba538cc31d33e10296f20b1-2008","40732f05a19aaf0c79f154da26c6b469-2024","40732f05a19aaf0c79f154da26c6b469-2010","40732f05a19aaf0c79f154da26c6b469-2008","1f8b5233e10c323f6edd2e02b65c1fbd-2004"]["501a60a2b28ba8e6a95ce30c11877fda"]/Motorcycle parts & spare parts/Motorcycle parts & spare parts/Motor, clutch & gearbox/Motorcycle parts & spare parts/Motor, clutch & gearbox/Motor parts/Brands/Brands/Boyesen/Moto/c/motorcycle-parts-spare-parts/motor-clutch-gearbox/c/motorcycle-parts-spare-parts/motor-clutch-gearbox/motor-parts/b/brands/c/motorcycle-parts-spare-parts/b/brands/boyesen/c34f002b7d0fe205386bd8108ae211a195434d8ea2d37ff9d16bbb25ab8e8ab9283f64e04f79d6244ffc2413636423b8997c9ba924e94e2c992eceac7bff443a89edf5d0f9298732b620dca03858bbd8ea256a310bc1e5db755fd392c524028a8fc6b46fe888f1cbebf4f01552c7ebac5a256a310bc1e5db755fd392c524028a8fc6b46fe888f1cbebf4f01552c7ebac597c9ba924e94e2c992eceac7bff443a834f002b7d0fe205386bd8108ae211a1983f64e04f79d6244ffc2413636423b89Boyesen<p>BOYESEN engineers create a new lineage of aerodynamic intake technology to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific Reed Petal Tensioning, Material Fuel Resistance, and Multi-Stage Reed Timing. Together, these innovations create a new technological benchmark in intake performance.<br /> <br />Each Boyesen RAD Valve is unique - tailor made to that model, year and displacement.</p><ul> <li>100% Aluminium body with aerodynamic internal surfacing </li><li>4-way aerodynamic directional dividers that distribute the angled charge evenly without flow loss</li><li>Carb boot clamp and gasket provided. No modifications required.</li><li>Model-Specific variable tension reed petals (Aerospace carbon material)</li><li>Rubber coated and fuel resistant reed petals to ensure a long-lasting seal</li></ul> <p>Race proven RC2 series Rad Valve results in an optimized air intake system that provides superior efficiency, peak horsepower gains, and acceleration for YOUR specific model machine</p><p> </p>244.94https://www.fc-moto.com/media/5f/d4/1b/1755027985/boyesen-rad-reed-valve-system-yamaha-yz85-bi-360004-figure-2.jpeg?ts=1772032909
