For Yamaha XJ N /XJ S Diversion (4BRA,4BRB/F944/945) 600CC model year 1991-1997. For Yamaha XJ S, Diversion (4KM/G844) 900CC model year 1994-2003. WHEEL RIM HUB. BRAKE DISCS. Brake Disc Disk. The minimum thickness of the brake disc surface is not the actual thickness, it is just to remind you that the brake disc needs to be replaced when it is worn to this thickness.
