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: 267mmI.D: 132mmMinimum Thickness: 4.5mmDisc Position: Front Left or Right or Rear Fits: Yamaha FZ1S FAZER 2001-2006 FZR1000 1987-1995 FZS1000S FAZER 2001-2005 MT01 2005-2015 RZ250 1983-1987 RZ350R 1985-1992 SRX600 1985-1990 XJ600 1984-1992 XJ650 1983-1986 XJ900 1996-1999 XJR1200 1995-1998 XJR1300 1998-2018 XJR1300 SP 1999-2001 XJS900 DIVERSION 2000-2002 XP500 T MAX 2001-2017 XV1100 VIRAGO 1986-1995 XVS1300A DRAGSTAR 2008-2009