Boyesen RC2 Series Rad Valve RAD-21J for Suzuki RM125

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 Reed Petal Tensioning, Material Fuel Resistance, and Multi-Stage Reed Timing. Together, these innovations create a new technological benchmark in intake performance.

Upgrade the intake performance of your compatible Suzuki RM125 with the Boyesen RC2 Series Rad Valve. Engineered by Boyesen, this model-specific reed valve assembly is designed to improve horsepower and throttle response through optimized intake airflow, reed petal tensioning, fuel-resistant materials, and multi-stage reed timing.

The Boyesen RAD-21J Rad Valve redirects the intake charge for more even distribution to the intake ports while maintaining consistent flow velocity. This design helps deliver responsive throttle control and improved engine performance across the powerband. Its one-piece construction supports straightforward installation and reliable service in demanding motorcycle applications.

Fitment: Fits 2003, 2004, 2005, 2006, 2007, and 2008 Suzuki RM125 models. Verify the motorcycle year and model before ordering to ensure proper application. The manufacturer part number is RAD-21J, and the vendor part number is 59-7721J.

As a model-specific intake component, the Boyesen RC2 Series Rad Valve is manufactured for the listed Suzuki RM125 fitment rather than being a universal replacement. It is a practical performance upgrade for riders seeking improved intake efficiency, quicker throttle response, and dependable installation without unnecessary modifications.

Features:

• Model-Specific Design: Boyesen RC2 Series Rad Valve engineered specifically for compatible Suzuki RM125 applications
• Improved Airflow: Redirects the intake charge for more even distribution to the intake ports
• Responsive Performance: Maintains consistent flow velocity for quicker throttle response and increased horsepower potential
• Optimized Reed Technology: Uses model-specific reed petal tensioning and multi-stage reed timing
• Durable Construction: One-piece design made with fuel-resistant materials
• Easy Installation: Designed for straightforward installation on compatible motorcycle applications
• Manufacturer Part Number: RAD-21J
• Vendor Part Number: 59-7721J
• Fitment: 2003-2008 Suzuki RM125

Fitment:
2003 Suzuki RM125
2004 Suzuki RM125
2005 Suzuki RM125
2006 Suzuki RM125
2007 Suzuki RM125
2008 Suzuki RM125