The invention relates to a method (20) for dimensioning a component of a brake system. The brake system (2) comprises at least two brake circuit sub-circuits (A, B). Each brake circuit sub-circuit (A, B) comprises at least one pump element (12) for building up a brake circuit pressure and/or for returning brake circuit fluid in an ABS case. The pump elements (12) of the at least two brake circuit sub-circuits (A, B) can be operated by means of a motor element (10), and the at least two brake circuit sub-circuits (A, B) can be isolated by means of an isolating element (8) such that different brake circuit pressures can be provided in the at least two brake circuit sub-circuits (A, B). The method comprises the steps of determining (22) a first defined operating point of a first operating state of the brake circuit system (2), the operating point comprising a first torque and a first rotational speed of the motor element (10) in the first operating state, and determining (24) a second defined operating point of a second operating state of the brake circuit system (2), the operating point comprising a second torque and a second rotational speed of the motor element (10) in the second operating state. The method is characterized by the dimensioning (26) of the pump elements (12) in such a way that, in the second operating state, an operating point of the motor element (10) that is shifted from the second operating point in the direction of the first operating point arises, whereby the delivery rate of at least one of the pump elements (12) is increased in a third operation point.