Twin Air Standard Foam Air Filter Fits Beta RS390/430/500

Description

The Twin Air Standard Foam Air Filter is engineered for the Beta RS390, RS430, and RS500 models, offering superior protection and enhanced airflow for off-road riding. Its dual-layer foam design features a coarse outer layer to trap dirt, grime, and sand, while the fine inner layer captures even the smallest particles, ensuring maximum air passage to your engine. This filter is slightly smaller than the stock design, increasing the air space around it for improved airflow and performance. The fused outer and inner foam layers prevent dirt from getting trapped between them, a common issue with inferior two-piece filters. The flat, thick foam sealing ring provides a secure, greaseless fit against the airbox, even in harsh conditions, while acting as a breathable gasket to further optimize airflow. Its durable, specially formulated adhesive withstands repeated cleanings, even with strong solvents or gasoline, ensuring long-term reliability. Designed for high performance and ease of maintenance, this filter is a dependable choice for riders seeking optimal engine protection and airflow.