Brake Rotor Sportsman 10.5 in OD 1 in Thick 10 x 5.500 in Bolt Pattern 1pc. 10.500 in OD. Brake Rotor. 1.000 in Thick. Brembo 09. C828.11 Disc Brake Rotor Front For 2018-2021 Subaru WRX STi. 10 x 5.500 in Bolt Pattern.