Disc Brake Component Specifications

/ 9-5 (9650) / 2010 / 5. Brakes / Brake discs and pads / Technical data / Disc Brake Component Specifications

Application	Specification
	Metric	English
Caliper Bore Diameter - Front (J60 and J61)	60.0 mm	2.36 in
Caliper Bore Diameter - Front (J62)	2x42.0 mm	2x1.65 in
Caliper Bore Diameter - Rear	40.0 mm	1.57 in
Front Brakes
• Rotor Diameter (J60)	296.0 mm	11.653 in
• Rotor Diameter (J61)	321.0 mm	12.637 in
• Rotor Diameter (J62)	337.0 mm	13.267 in
• Rotor Discard Thickness*	27.0 mm	1.07 in
• Rotor Maximum Allowable Assembled Lateral Runout - with Wheel Attached	0.05 mm	0.002 in
• Rotor Maximum Allowable Thickness Variation	0.006 mm	0.00024 in
• Rotor Thickness New	30.0 mm	1.18 in
Rear Brakes
• Rotor Diameter (J60)	292 mm	11.5 in
• Rotor Diameter (J61, J62)	315 mm	12.40 in
• Rotor Discard Thickness* (J60)	10.0 mm	0.395 in
• Rotor Discard Thickness* (J61, J62)	21.0 mm	0.827 in
• Rotor Maximum Allowable Assembled Lateral Runout - with Wheel Attached	0.05 mm	0.002 in
• Rotor Maximum Allowable Thickness Variation	0.006 mm	0.0003 in
• Rotor Thickness New (J60)	12.0 mm	0.472 in
• Rotor Thickness New (J61, J62)	23.0 mm	0.905 in
*All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness specification.

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