All Balls Master Cylinder Rebuild Kit Front Model 18-1083 Incl copper washers, cup seals & o-rings (& repl. screws where applicable) For: Yamaha YZF-R1 15-19, YZF-R1M 15-18, YZF-R1S 16-18, YZF-R6 17-18 IMPORTANT: Picture is for indication purpose only. To visually check the kit, you can visit the all balls website. The bought kit will match your motorcycle.