What does front 6 rear 4 mean in brake discs?

[DelJaxon]

In 'front 6 rear 4', the numbers 6 and 4 refer to the number of pistons. Here is some relevant information about brake discs: 1. Introduction: A brake disc, simply put, is a round disc. The brake caliper clamps the brake disc to generate braking force. When you press the brake pedal, the brake disc is clamped to slow down or stop the vehicle. Brake discs offer better braking performance and are easier to maintain compared to drum brakes. 2. Structure: Disc brake rotors are divided into solid discs (single-piece discs) and ventilated discs (double-piece discs). Solid discs are straightforward; they are solid. Ventilated discs, as the name suggests, have a ventilation function. Externally, ventilated discs have many holes around the circumference leading to the center, known as vents.