The document describes the design and analysis of the braking system for a Formula 3 race car. Key points: - A bike's disc rotor and calipers were selected to reduce weight. Calculations showed the clamping force was sufficient and thermal analysis validated the safety of using the bike's rotor. - Calculations determined braking forces, torques, bias, and performance. A tandem master cylinder provided independent circuits. - Steady state and dynamic thermal-structural analyses in ANSYS and ABAQUS showed temperature distributions, stresses, and deformations met requirements. - The implemented system achieved a weight reduction of around 11kg compared to a standard system, improving performance.