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 ZX10R 2008-2016 ZX10R 30th ANNIVERSARY SPECIAL EDITION 2015 ZX10R ABS 2011-2020 ZX10R NINJA ABS KRT REPLICA 2016-2019 ZX10R NINJA ABS SE 2015 ZX10R NINJA NON ABS KRT REPLICA 2016 ZX10RR 2018-2020