Motorcycle valve box Honda CR125R 1020939

The engineers Boyesen have developed a series of technical innovations for their range of intake systems aimed at optimizing power, torque, and smoothness: Aerodynamic Surface Optimization (optimisation of internal surfaces), Model-Specific Reed Petal Tensioning (model-specific reeds), Material Fuel Resistance (hydrocarbon resistant materials), and Multi-Stage Reed Timing (staged opening reeds).

The reed valves BOYESEN are specifically developed for each motorcycle model.

• 100% aluminium reed valve bodies with optimized internal surface
• 4-way diffuser to optimize flow and avoid pressure losses
• Intake pipe and fastening collars included, direct fit without modification
• Variable flexibility reeds, specific to each model (aerospace quality carbon)
• Rubber-coated reeds that are resistant to hydrocarbons ensuring prolonged gasket life

The RC2 reed valves, developed for competition, significantly optimize intake flows, leading to greater efficiency, more power, and better throttle response on YOUR motorcycle!