Disc Brake Component Specifications

Application	Specification
Application	Metric	English
Front Brake Rotor JL9
Rotor Diameter	321.0 mm	12.60 in
Rotor Discard Thickness*	28.0 mm	1.10 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001
Rotor Thickness - New	30.0 mm	1.18 in
Front Brake Rotor J55
Rotor Diameter	345.0 mm	13.50 in
Rotor Discard Thickness*	27.0 mm	1.06 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Thickness - New	30.0 mm	1.18 in
Rear Brake Rotor JL9 NOTE: Do NOT refinish brake rotor, only replace with NEW.
Rotor Diameter	339.0 mm	13.30 in
Rotor Discard Thickness*	24.0 mm	0.94 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Thickness - New	26.0 mm	1.02 in
Rear Brake Rotor J55 NOTE: Do NOT refinish brake rotor, only replace with NEW.
Rotor Diameter	350.0 mm	13.30 in
Rotor Discard Thickness*	24.0 mm	0.94 in
Rotor Maximum Allowable Assembled Lateral Runout	0.06 mm	0.002 in
Rotor Maximum Allowable Scoring	1.50 mm	0.059 in
Rotor Maximum Allowable Thickness Variation	0.025 mm	0.001 in
Rotor Thickness - New	26.0 mm	1.02 in
*Each disc brake rotor is marked with a minimum thickness dimension. Replace any rotor that does not meet the minimum thickness dimension.