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: 56mmMinimum Thickness: 6.5mmDisc Position: Rear Fits: Harley Davidson XL 1200L SPORTSTER LOW 2009-2011 XL 1200V SEVENTY TWO 2012-2016 XL 883 2008 XL 883L SPORTSTER LOW 2008-2010 XL 883N IRON 883 2013-2016 XL 883R ROADSTER 2011-2012 XL1200C SPORTSTER CUSTOM 2012-2016 XL1200N NIGHTSTER 2012 XL1200T SUPERLOW 2014-2016 XL1200X FORTY-EIGHT 2010-2016 XLH1200C SPORTSTER CUSTOM 2010-2016 XLH1200N NIGHTSTER 2009-2012 XLH883 IRON 2009-2016 XLH883C SPORTSTER CUSTOM 2008-2009 XLH883L SUPER LOW 2011-2016 XR 1200X 2012 XR1200 SPORTSTER 2009-2010 XR1200X SPORTSTER 2011