Intake

Dual stage reedsMinor change gives major H.P. improvementsFaster opening and closingGreater low pressure (Low-throttle) responseGreater velocity and flow areaLonger overall lifeNo engine damage if broken

Dual stage reedsMinor change gives major H.P. improvementsFaster opening and closingGreater low pressure (Low-throttle) responseGreater velocity and flow areaLonger overall lifeNo engine damage if broken

Dual stage reedsMinor change gives major H.P. improvementsFaster opening and closingGreater low pressure (Low-throttle) responseGreater velocity and flow areaLonger overall lifeNo engine damage if broken

Boyesen Motorcycle Rad Valve Reeds Rl-08

Boyesen Motorcycle Rad Valve Reeds Rl-07

BOYESEN engineers embarked on a mission to create a new lineage of aerodynamic intake technology by refining the primary performance factors required to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific...

Boyesen Motorcycle Rad Valve Boot Rbk-8

Boyesen Motorcycle Rad Valve Boot Rbk-10

Each Boyesen RAD Valve is unique - tailor made to that model, year and displacement.The intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horsepowerOne...

Each Boyesen RAD Valve is unique - tailor made to that model, year and displacement.The intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horsepowerOne...

Each Boyesen RAD Valve is unique - tailor made to that model, year and displacement.The intake charge is redirected for more even distribution to the intake portsConstant flow velocity is maintained for instant throttle response and more horsepowerOne...

Redirects fuel flowImproves throttle responseEliminates 99% of all boggingIncreases bottom end performanceImproved fuel efficiencyWorks with fixed or adjustable leak jetsIncludes all necessary additional partsComplete easy to install instructionsPatent...