The BMC motorcycle air filter for Yamaha YZF-R1 is manufactured using the Full Molding system, with soft rubber molded as a single piece and no welded joints at the corners. The filter media is cotton gauze impregnated with low-viscosity oil, while the mesh has an epoxy coating to protect it from petrol fumes and oxidation caused by moisture. Compared with standard paper filters, it is designed to provide higher airflow and limit pressure loss as air passes through the filter.
- Type: Motorcycle air filter
- Compatibility: Yamaha YZF-R1, 2004–2006
- Filter media: Cotton gauze impregnated with low-viscosity oil
- Construction: Single piece with no welded joints at the corners
- Mesh protection: Epoxy coating
- Manufacturing system: Full Molding