Boyesen Motorcycle valve box Rad Honda CR125R

The engineers Boyesen have developed a series of technical innovations for their range of intake systems aimed at optimizing 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 reed valves BOYESEN are specifically designed for each motorcycle model.

• 100% aluminium body, optimised internal surface
• 4-way diffuser to optimise flows and avoid pressure losses
• Intake pipe and mounting clamps included, direct fitting without modification
• Variable flexibility reeds, specific to each model (Made from aerospace-grade carbon)
• Reeds coated with rubber and resistant to hydrocarbons ensuring a longer lifespan of the seals

The RC2 reed valves, developed in competition, significantly optimise intake flows, leading to more efficiency, more power, and better revs on YOUR motorcycle!

Specifications:

• weight (g): 487
• width (mm): 111
• height (mm): 111
• length (mm): 144
• volume (cm³): 1774