Brake disc, front wheel

Type	Ventilated

Dimensions	Aero		Other
Outside diameter	308 mm	12.1 in	288 mm	11.3 in
Thickness (new)	25 mm	0.98 in	25 mm	0.98 in
Minimum permissible thickness	22 mm	0.87 in	22 mm	0.87 in
Maximum grinding depth each side	1.0 mm	0.04 in	1.0 mm	0.04 in
Minimum permissible thickness after grinding	23.5 mm	0.92 in	23.5 mm	0.92 in
Maximum runout (fitted)	0.08 mm	0.003 in	0.08 mm	0.003 in
Maximum variation in thickness	0.015 mm	0.0006 in	0.015 m	0.0006 in