MTX solid discs are constructed using one complete segment of Japanese SUS 420 stainless steel then heat-treated to HRC 36+-2. Lightening and drill hole patterns are as per OEM designs to improve braking performance and reduce the temperature of the disc.MTX Discs provide amazing braking control for your motorcycle. All MTX discs are designed and manufactured with world-leading cutting edge technologies:Precision CNC machined and laser-cut technologyJapanese SUS 420 Stainless SteelReplacement for Original EquipmentOEM Design; lightening & drill hole patternsSpecifications:O.D: 260mmI.D: 126mmMinimum Thickness: 3mmDisc Position: Front Left Fits: Husqvarna CR125 2009-2011 TC250 2009-2012 TC449 2011-2012 TC450 2008-2013 TC510 2008-2012 TE250 2008-2012 TE310 2009-2012 TE449 2011-2013 TE450 2008-2012 TE510 2008-2013 TE630 2010-2012 WR125 2009-2012 WR250 2008-2011 WR300 2009-2011