Boyesen Motorcycle valve box Rad KTM 250/300EXC

The engineers Boyesen have developed a series of technical innovations for their range of intake systems aimed at optimising power, torque, and flexibility: Aerodynamic Surface Optimization (optimisation of internal surfaces), Model-Specific Reed Petal Tensioning (model-specific reed), 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 body, optimised internal surface finish
• 4-way diffuser to optimise flow and prevent pressure loss
• Intake pipe and mounting clamps included, direct fitting without modifications
• Variable flexibility reeds, specific to each model (Aerospace quality carbon)
• Rubber-coated reeds that resist hydrocarbons, ensuring a long life for seals

The RC2 reed valves, developed in competition, significantly optimise intake flows, resulting in greater efficiency, more power, and better throttle response on YOUR bike!

Specifications:

• weight (g): 451
• width (mm): 114
• height (mm): 111
• length (mm): 147
• volume (cm³): 1860