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: Aprilia RST1000 Futura 2001-2005 Ducati 906 Paso 1988-1989 907 Paso 1990-1992 Yamaha FJ1200 1988-1996 FZR400 RR 1989-1992 FZR400RR EXUP (3TJ IMPORT) 1993-1995 FZR600 1989-1993 FZR600R 1994-1996 FZS600 Fazer 1998-2003 TDM850 1991-2001 TRX850 1996-2000 TZR250W 3MA 1989 YZF600R 1994-1995