Laboratory flow analysis proves Boyesen dual-stage reeds outperform standard reeds They permit greater flow velocity over the entire range of operating pressures Increased performance from start-up...

Boyesen Pro Series Reeds are for RAD Valve and Rage Cages The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design Utilizes a carbon fiber top...

Boyesen Pro Series Reeds are for RAD Valve and Rage Cages The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design Utilizes a carbon fiber top...

An aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engine's cooling system This high-flow, hydrodynamic water pump kit has...

Boyesen's hot RAD valves provide plenty of off-road torque Custom reed cage holds Boyesen's carbon fiber reeds Sustains flow velocity through the valve and redirects intake charge for...

Laboratory flow analysis proves Boyesen dual-stage reeds outperform standard reeds They permit greater flow velocity over the entire range of operating pressures Increased performance from start-up...

Replacement reeds for the Boyesen RAD valve # RAD-12 and RAD-12A Includes petals, rev-plates, and extra screws Compatible Vehicles Years Make Make Notes 1987-1998 Kawasaki KX250

Boyesen Pro Series Reeds are for RAD Valve and Rage Cages The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design Utilizes a carbon fiber top...

Laboratory flow analysis proves Boyesen dual-stage reeds outperform standard reeds They permit greater flow velocity over the entire range of operating pressures Increased performance from start-up...

Boyesen Pro Series Reeds are for RAD Valve and Rage Cages The latest carbon fiber technology with all the advantages of Boyesen's patented dual-stage reed design Utilizes a carbon fiber top...

Set your ride apart from the rest with the ultimate look in race performance Lightweight factory clutch covers provide years of outstanding protection; guaranteed not to warp Individually surfaced...

Replacement reeds for the Boyesen RAD valve # RAD-35A and RAD-35X Includes petals, rev-plates, and extra screws Compatible Vehicles Years Make Make Notes 1988-2006 Yamaha Blaster 200...