Using only the best flame-laminated dual-layer foam bonded with the highest quality glue No-Toil handmakes each foam filter to stand up to the roughest and toughest of any style of riding or terrain. Note: No-Toil air filters oil washes clean in water and is 100% biodegradable; dirty water can be thrown down the sink. You do not need to use harmful petrol or kerosene to clean your filter. No Toil oil is 100% waterproof - until water is mixed with No Toil cleaning crystals). Fits: KTM 105 SX 2006-2011 105 XC 2008-2009 125 EGS 1993-1997 125 EXC ENDURO 2004-2007 125 SX 2004-2005 200 EXC 2004-2007 250 EGS 1990-1997 250 EXC 1993 2004-2005 250 EXC RACING 2004-2006 250 EXCF 2007 250 SX 2004-2006 250 SXF 2005-2006 300 EXC 2004 300 XC 2006-2007 400 EXC 2001-2003 400 EXC-RACING 2004-2007 450 EXC 2004-2006 450 SMR 2005-2007 450 SX 2003-2006 450 SX RACING 2006 520 EXC 2001-2002 520 SX 2001-2002 525 EXC 2003-2006 525 SX 2003-2006 560 SMR 2005-2007 625 SXC 2006-2007 85 SX (Big Wheel) 2003-2012 85 SX (Small Wheel) 2003-2012