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: Suzuki GS1200SS 2001 GS500 1989-2008 GS500F 2004-2014 GSF1200 BANDIT 2001-2005 GSF1200S BANDIT 2001-2005 GSF250 BANDIT 1990-1995 GSF400 BANDIT 1991-1993 GSX1200Y 1998-2002 GSX250 INVADER 2002-2004 GSX250F ACROSS 1990-1998