TwinAir Air Filter 150209 for Honda CRF250R 2004 to 2009 and CRF450R 2003 to 2008.
Over 40 years ago, with the sandy and grainy soils of the Netherlands causing engine failures which resulted in the simple foam and / or paper filters causing a lot of trouble to the motocross rider as they lacked protection .
The revolutionary design of the TwinAir Air Filter 150209, fused into a double-layer (now widely copied) combines performance and protection.
The fused layers of open-pore foam and fine internal foam trap even the smallest particles. The new, more rounded design stimulates air flow. Reduced seams are made possible by a revolutionary micro-gluing process.
Shorter seams = more foam = more flow.
It is important to spray a lubricating oil on the TwinAir Air Filter 150209 to improve the absorption of dust debris.