DBA DBA42791 Series Performance Brake Rotor - 4000 Rear

The DBA 4000 Series disc brake rotor is a direct replacement single-piece performance brake rotor designed for drivers seeking upgraded braking performance above and beyond standard OE levels. Cast from high carbon alloyed iron and undergoing Thermal Stability Profiling, DBA's metallurgy can handle the increased stress and heat generated under intense braking applications, time and time again.

Kangaroo Paw Ventilation Technology:

• Features DBA's Kangaroo Paw ventilation that implements a series of 144 diamond and teardrop patterned pillars, achieving up to a 30% increase in surface area and 20% improvement in cooling efficiency compared to traditional straight vane designs
• Unique Kangaroo Paw vane design provides up to 20% better heat dissipation, increasing braking effectiveness and prolonging brake life

Advanced Features:

• Thermo-Graphic Heat Paint markings change color at specific temperature thresholds to assist with monitoring braking temperatures and rotor fatigue, allowing for optimal interaction with DBA's thermal stability profiling
• Cubic Boron Nitride (CBN) machine turned finish minimizes disc thickness variation and the potential for pad knock and resulting premature wear
• Heat treatment cycles realign the microstructure of the iron, resulting in increased rotor stability and durability
• Painted non-friction areas to prevent rust and enhance appearance

On average, these rotors last 3x longer than most competitors. This rear rotor is designed for 6-lug wheel applications and provides a direct OE replacement with superior performance characteristics for trucks and SUVs.