Outerwear pre-filters are manufactured from a durable polyester material. Material contains uniform micron sized openings that allow air in, yet filters out the unwanted elements, such as sand, dirt, clay and even water. Filters items as small as .005 in diameter without noticeable air flow restriction. Dyno and flow bench testing has shown no significant loss of horsepower or Air Inlet while using this product. Silicone impregnated micro-mesh is water resistant. Seams are dielectrically welded.

2014-2017 fits HON CRF250R
2013-2016 fits HON CRF450R