Honda CR 250 R (ME 03) [1986-1998] - Wheel membrane block - Honda CR250R

BOYESEN wheel membrane block for Honda CR 250 R

The BOYESEN wheel diaphragm block is designed as a model-specific intake system for the Honda CR 250 R (ME 03) in the entire model year range from 1986 to 1998. Its design combines an optimized internal surface with a 4-way diffuser that supports the intake air flows and is intended to avoid pressure losses.

Function and construction

• Block made of 100% aluminum
• Optimized interior surfaces to coordinate the air flow
• 4-way diffuser for targeted intake air guidance
• Model-specific membrane plates with variable flexibility
• Aerospace-grade carbon membrane plates
• Rubber-coated, hydrocarbon-resistant membrane plates

The membrane plates work with several opening levels and are tailored to the respective motorcycle model. The hydrocarbon-resistant design supports a longer seal life. Together with the flow-optimized design, the membrane block can contribute to improved efficiency, performance and better pulling power.

Scope of delivery and assembly

The scope of delivery includes the intake manifold and the fastening clamps. The membrane block is intended for direct assembly without modification.

Vehicle assignment

Suitable for Honda CR 250 R (ME 03), built between 1986 and 1998.

The intake system was developed for competition use and is aimed at drivers who want to specifically design their Honda's intake flow using a model-specific membrane block system.