Boyesen Motorcycle valve box Rad Honda CR250R CRE 250 R

The engineers Boyesen have developed a series of technical innovations in their range of intake systems to enhance power, torque, and responsiveness: Aerodynamic Surface Optimization (internal surface optimization), Model-Specific Reed Petal Tensioning (model-specific reed petal tensioning), Material Fuel Resistance (fuel-resistant materials), and Multi-Stage Reed Timing (tiered opening reeds).
The reed valves BOYESEN are specifically designed for each motorcycle model.

• 100% aluminum body, optimised internal surface
• 4-way diffuser to optimise airflow and avoid pressure loss
• Intake pipe and mounting clamps included, direct fit without modifications
• Variable flexibility reeds, specific to each model (made from aerospace quality carbon)
• Reeds coated with rubber and resistant to hydrocarbons ensuring a long life for the seals

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

Specifications:

• weight (g): 507
• width (mm): 114
• height (mm): 111
• length (mm): 147
• volume (cm³): 1860