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: Kawasaki VN1500 MEAN STREAK 2002-2004 VN1600 MEAN STREAK 2004-2008 ZX12R 2000-2003 ZX7R 1996-2003 ZX7RR 1996-1999 ZX9R 1994-1997 2002-2003 ZXR750 1991-1995 ZZR1100 1993-2001 ZZR1200 2002-2005