K&N AIR FILTERS. Ideal for extended use in dirty and dusty off-road riding and provides clean carburetion even at high altitudes. K&N replacement air filters are washable and reusable and provide high air flow with excellent filtration.Additonal Fitment:1993-2006 HONDA 90 TRX902007-2008 HONDA 90 TRX90 EX2004-2009 HONDA CRF80F1985-2003 HONDA XR80R1985-2003 HONDA XR100R2009-2009 HONDA 90 TRX90X2004-2009 HONDA CRF100F