Disc Brake Component Specifications

Disc Brake Component Specifications

Specification

Application Metric/English

Front Brakes JC3

Rotor Discard Thickness* 27.50 mm/1.082 in
Rotor Minimum Allowable Thickness After Refinish 28.0 mm/1.10 in
Rotor Thickness (new) 29.0 mm/1.14 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Front Brakes JC4

Rotor Discard Thickness* 27.50 mm/1.082 in
Rotor Minimum Allowable Thickness After Refinish 28.0 mm/1.10 in
Rotor Thickness (new) 29.0 mm/1.14 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Front Brakes JH2

Rotor Discard Thickness* 27.50 mm/1.082 in
Rotor Minimum Allowable Thickness After Refinish 28.0 mm/1.10 in
Rotor Thickness (new) 29.0 mm/1.14 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Front Brakes JH6

Rotor Discard Thickness* 36.50 mm/1.437 in
Rotor Minimum Allowable Thickness After Refinish 37.0 mm/1.46 in
Rotor Thickness (new) 38.0 mm/1.50 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Front Brakes JH7

Rotor Discard Thickness* 36.50 mm/1.437 in
Rotor Minimum Allowable Thickness After Refinish 37.0 mm/1.46 in
Rotor Thickness (new) 38.0 mm/1.50 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Rear Brakes JC3

Rotor Discard Thickness* 18.50 mm/0.728 in
Rotor Minimum Allowable Thickness After Refinish 19.0 mm/0.748 in
Rotor Thickness (new) 20.0 mm/0.787 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Rear Brakes JC4

Rotor Discard Thickness* 28.50 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish 29.0 mm/1.142 in
Rotor Thickness (new) 30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout 0.05 mm/0.002 in
Rotor Maximum Allowable Scoring1 .50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation 0.025 mm/0.001 in

Rear Brakes JH2

Rotor Discard Thickness* 28.50 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish 29.0 mm/1.142 in
Rotor Thickness (new) 30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Rear Brakes JH6

Rotor Discard Thickness* 27.50 mm/1.082 in
Rotor Minimum Allowable Thickness After Refinish 28.0 mm/1.102 in
Rotor Thickness (new) 29.0 mm/1.141 in
Rotor Maximum Allowable Lateral Runout 0.05 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

Rear Brakes JH7

Rotor Discard Thickness* 28.5 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish 29.0 mm/1.142 in
Rotor Thickness (new) 30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout 0.05 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

* 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 or discard thickness specifications.