Motorcycle valve box Honda CR250R 1020947

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

• The BOYESEN reed valves are specifically developed for each motorcycle model
• 100% aluminium box body, optimised internal surface state
• 4-way diffuser to optimise airflow and prevent pressure drops
• Intake pipe and fixing clamps supplied, direct mounting without modification
• Variable flexibility reeds, specific to each model (Aerospace quality carbon)
• Reeds coated with rubber and resistant to hydrocarbons ensuring an extended lifespan of the seals

The RC2 reed valves, developed in competition, significantly optimize intake flows, resulting in enhanced efficiency, more power, and better engine response on YOUR motorcycle!