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: 316mmI.D: 184mmMinimum Thickness: 6mmDisc Position: Rear Fits: Honda GL1500C VALKYRIE 2000-2003 GL1500CF VALKYRIE INTERSTATE 2000 GL1500CT VALKYRIE TOURER 2000 VTX1800 2002-2008 VTX1800 C 2002-2011 VTX1800 F 2005 VTX1800N 2004-2005 VTX1800R 2002-2005 VTX1800S 2002-2003