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Home >> Subaru >> 2021 >> Crosstrek Limited >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Brake System >> Front Disc Rotor >> Inspection >> Disc Rotor Thickness Check

Disc Rotor Thickness Check

  1. 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

    G11255182Courtesy of SUBARU OF AMERICA, INC.
    Size Value in a brand new state Wear limit Disc rotor outer diameter
    Disc rotor thickness (A) 15-inch 24 mm (0.94 in) 22 mm (0.87 in) 277 mm (10.91 in)
    16-inch 294 mm (11.57 in)
  2. If the wear limit is exceeded in the inspection, replace the disc rotor.
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