Brake Rotor/Disc

Front
Outside diameter
Standard 285 mm (11.2 inch)
Heavily laden car 308 mm (12.1 inch)
Thickness (New)
Standard 25 mm (0.98 inch)
Heavily laden car 28 mm (1.1 inch)
Minimum permissible thickness
Standard 22 mm (0.87 inch)
Heavily laden car 22 mm (0.84 inch)
Maximum grinding depth each side
Standard 1.0 mm (0.04 inch)
Heavily laden car 1.0 mm (0.04 inch)
Minimum permissible thickness after grinding
Standard 23.5 mm (0.92 inch)
Heavily laden car 23.5 mm (0.92 inch)
Maximum runout (fitted)
Standard 0.08 mm (0.003 inch)
Heavily laden car 0.08 mm (0.003 inch)
Maximum variation in thickness
Standard 0.015 mm (0.0006 inch)
Heavily laden car 0.015 mm (0.0006 inch)
Rear
Outside diameter
Standard 278 mm (10.9 inch)
Heavily laden car 300 mm (11.8 inch)
Thickness (New)
Standard 10 mm (0.39 inch)
Heavily laden car 20 mm (0.79 inch)
Minimum permissible thickness
Standard 8.0 mm (0.32 inch)
Heavily laden car 18 mm (0.71 inch)
Maximum grinding depth each side
Standard 0.8 mm (0.04 inch)
Heavily laden car 0.8 mm (0.04 inch)
Minimum permissible thickness after grinding
Standard 8.5 mm (0.33 inch)
Heavily laden car 18.5 mm (0.73 inch)
Maximum runout (fitted)
Standard 0.08 mm (0.003 inch)
Heavily laden car 0.08 mm (0.003 inch)
Maximum variation in thickness
Standard 0.015 mm (0.0006 inch)
Heavily laden car 0.015 mm (0.0006 inch)