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Home >> Subaru >> 2021 >> Crosstrek Limited >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System >> Rear Disc Rotor >> Inspection >> Disc Rotor Thickness Check

Disc Rotor Thickness Check

  1. Remove the caliper body assembly. Ref. to BRAKE>REAR DISC BRAKE ASSEMBLY>REMOVAL .
  2. Set a micrometer 10 mm (0.39 in) inward from the disc rotor outer perimeter, and then measure the disc rotor thickness (A).

    Preparation tool: 

    Micrometer

    G11255204Courtesy of SUBARU OF AMERICA, INC.
    Size Value in a brand new state Wear limit Disc rotor outer diameter
    Disc rotor thickness (A) 15-inch 10 mm (0.39 in) 8.5 mm (0.335 in) 274 mm (10.79 in)
    16-inch 17 mm (0.67 in) 15 mm (0.59 in) 285 mm (11.22 in)
  3. If the wear limit is exceeded in the inspection, replace the disc rotor.
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