DBA 42225S 4000 Series T3 Slotted Rear Brake Rotor

The DBA 42225S is a high-performance single-piece slotted brake rotor from DBA's 4000 Series T3 line, engineered to deliver superior stopping power for demanding street and track applications. This rear rotor measures 330mm in diameter and features DBA's advanced T3 tri-symmetrical slot design, which provides exceptional brake pedal feel, reduced vibration, and consistent braking performance.

Advanced T3 Slot Technology:

Built on the foundation of DBA's proven T2 design, the T3 slot pattern features precision CNC-machined tri-symmetrical curved slots that create multiple exit points for brake pad friction dust and gases. This bi-directional design results in quieter operation, more responsive braking, and smoother pedal modulation compared to traditional slotted rotors.

Key Features:

• XG-150 high-carbon alloyed iron construction for superior heat resistance and durability
• Thermal Stability Profiling (TSP) process minimizes surface cracking under extreme conditions
• Patented Kangaroo Paw ventilation design with 144 diamond and teardrop pillars for up to 30% more surface area and 20% improved cooling efficiency
• Thermo-Graphic heat paint markings change color at specific temperature thresholds for easy performance monitoring
• Anti-rust protective paint on non-friction areas for long-lasting appearance
• Direct bolt-on replacement requiring no mechanical modifications
• Vented design with 5-bolt pattern (114.3mm pitch circle diameter)

Specifications:

• Rotor Diameter: 330mm (13.0 inches)
• Rotor Thickness: 20mm (0.79 inches)
• Center Hole: 80mm
• Bolt Pattern: 5x114.3mm
• Weight: 9.1kg (20.1 lbs) per rotor

The DBA 4000 Series T3 rotor is ideal for enthusiasts seeking OEM-plus braking performance, whether for spirited street driving, track days, or high-performance applications. Each rotor is manufactured to QS-9000 quality standards and features moisture-proof packaging. Sold individually.