The RFX Multi Air Foam Air Filter, part number FXAF 10002 55NO, is designed to provide dependable airflow and filtration for a range of Honda off-road motorcycles. Manufactured by Multi Air for RFX, this replacement filter uses a twin-layer foam construction to help protect the engine from dirt and debris while supporting consistent performance in demanding riding conditions.
Designed for precise fitment, the RFX air filter is suitable for the 2003–2007 Honda CRF450R and select Honda CRF250X and CRF450X models from 2010, 2011, and 2014. Its serviceable foam design makes it a practical choice for riders, racers, and technicians who need a reliable replacement filter for regular maintenance or off-road use. Verify the motorcycle model and year before installation to ensure proper fitment.
With more than 30 years of filter-manufacturing experience, Multi Air produces filtration components trusted across a broad range of powersports applications. The RFX Multi Air filter combines durable materials, a precise motorcycle-specific shape, and efficient filtration in a direct replacement-style design.
Manufacturer: Multi Air
Brand: RFX
Part Number: FXAF 10002 55NO
Fitment: 2003–2007 Honda CRF450R; 2010–2011 Honda CRF250X and CRF450X; 2014 Honda CRF250X
Features:
- Twin-layer breathable foam supports airflow and effective engine filtration
- Nonflammable foam construction for compatible four-stroke applications
- Precise fitment for select Honda CRF motorcycles
- Replacement filter manufactured by Multi Air for RFX
- Suitable for routine maintenance, trail riding, and competitive off-road use
Fitment:
2003 Honda CRF450R
2004 Honda CRF250R
2004 Honda CRF250X
2004 Honda CRF450R
2005 Honda CRF250R
2005 Honda CRF250X
2005 Honda CRF450R
2005 Honda CRF450X
2006 Honda CRF250R
2006 Honda CRF250X
2006 Honda CRF450R
2006 Honda CRF450X
2007 Honda CRF250R
2007 Honda CRF250X
2007 Honda CRF450R
2007 Honda CRF450X
2008 Honda CRF250R
2008 Honda CRF250X
2008 Honda CRF450R
2008 Honda CRF450X
2009 Honda CRF250R
2009 Honda CRF250X
2009 Honda CRF450X
2010 Honda CRF250X
2010 Honda CRF450X
2011 Honda CRF250X
2011 Honda CRF450X
2012 Honda CRF250X
2012 Honda CRF450X
2013 Honda CRF250X
2013 Honda CRF450X
2014 Honda CRF250X
2014 Honda CRF450X
2015 Honda CRF250X
2015 Honda CRF450X
2016 Honda CRF250X
2016 Honda CRF450X
2017 Honda CRF250X
2017 Honda CRF450X