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: 220mmI.D: 112mmMinimum Thickness: 3.5mmDisc Position: Rear Fits: Husqvarna CR125 2000-2001 CR250 2000-2001 SM570 2001 SM610 2006-2009 SM610 SUPERMOTARD 2000-2005 TE E610 DUAL SPORT 2000-2010 TE125 2014 TE125 4T 2011 TE410 2001 TE570 2001 2003 TE610 2000-2007 TE630 2010-2012 WR250 2000-2001