Brembo 4K3.8013A PISTA 4 TY3 2-Piece Rear Brake Discs 345mm

The Brembo 4K3.8013A PISTA 4 TY3 is a high-performance 2-piece rear brake disc system engineered for track and racing applications. Designed with Brembo's motorsport expertise, these discs deliver exceptional stopping power and heat dissipation under extreme braking conditions.

Key Specifications:

• Disc diameter: 345mm (13.58 inches)
• Disc thickness: 28mm
• Center bell diameter: 54mm
• 2-piece floating design for reduced unsprung weight
• TY3 bell configuration for rear axle applications
• Directional vane design for optimized cooling

Performance Benefits:

• Reduced rotating mass compared to 1-piece discs improves handling response
• Floating disc design accommodates thermal expansion and reduces stress
• High-carbon cast iron rotor provides consistent friction and wear characteristics
• Designed for track use where maximum braking performance is critical

The PISTA (Italian for "track") series represents Brembo's dedicated racing brake components, developed from their extensive motorsport experience in Formula 1, GT racing, and other professional series. The 2-piece construction separates the friction ring from the aluminum bell, allowing independent thermal expansion and reducing overall weight while maintaining structural integrity under severe racing conditions.