MTX floating discs are made from two segments of stainless steel which are riveted together to allow the outer section of stainless steel to expand under extreme temperatures. The outer section is manufactured from Japanese SUS 420 stainless steel then heat-treated to HRC 36+-2 while the centre of the disc is manufactured from steel or alloy. Fits: Yamaha FJR1300 2003-2005 FJR1300 ABS 2004 FJR1300 AE 2015-2022 FJR1300A 2005-2020 MT01 2005-2006 XVS950A V STAR 2009-2010