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: 205mmI.D: 75mmMinimum Thickness: 4mmDisc Position: Front Left or Right Fits: Can-Am Outlander 400 4WD 2009-2010 Outlander 400 MAX 2010 Outlander 500 4WD 2010-2011 Outlander 500 MAX 4WD 2011 Outlander 650 4WD 2009-2011 Outlander 650 MAX 4WD 2011 Outlander 650 XT 4WD Power Steering 2009