Brembo 103.9039A Type III Slotted 2-Piece Brake Rotor Set

The Brembo 103.9039A is a Racing Series 2-Piece Brake Rotor Set engineered for high-performance and track-day driving. This system replaces a heavy single-piece rotor with a lightweight two-piece disc assembly, comprising an aluminum bell/hat and an outer advanced high-carbon alloy iron disc with corrosion-resistant plating, joined by floating mounting hardware.

Key Features:

• Type III Slot Pattern: Extensively used in professional motorsports, the curved Type III slots disperse gases and continuously clean the brake pad surface for improved initial bite and excellent release characteristics
• Floating 2-Piece Construction: The disc-to-hat mounting uses a floating bobbin with anti-rattle spring, allowing thermal expansion without rotor deformation or cracking
• Significant Weight Reduction: The aluminum bell/hat construction reduces unsprung corner weight, improving vehicle dynamics including handling, acceleration, and braking response
• High Thermal Capacity: Advanced high-carbon alloy construction provides greatly improved heat management and thermal capacity over standard OE discs, supporting extended track use
• OEM-Compatible Design: Engineered to work seamlessly with OEM calipers and brake systems for safe, precise fitment
• Pre-Assembled: Complete axle set arrives pre-assembled with all necessary mounting hardware included
• Material: Advanced High Carbon Alloy with Corrosion Resistant Plating
• Disc Construction: 2-Piece, Vented and Slotted

Brembo's 2-piece rotor technology is proven in professional motorsport applications worldwide, delivering superior braking performance, longevity, and pedal feel for demanding street and track environments.