DBA DBA42617 Series HD Performance Brake Rotor - 4000 293mm

The DBA 4000 Series HD disc brake rotor is a direct replacement single-piece brake rotor designed for drivers seeking upgraded performance braking above and beyond standard OE levels. Cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling (TSP), DBA's metallurgy is able to handle the increased stress and heat generated under intense braking applications, time and time again.

Key Features:

• XG-150 high carbon alloyed iron construction with Thermal Stability Profiling for superior heat resistance
• Patented Kangaroo Paw ventilation featuring 144 diamond and teardrop patterned pillars for up to 20% improvement in cooling efficiency
• Smooth OE-style rotor finish, popular for drivers requiring the benefits of 4000 Series performance with an OE appearance
• CBN (Cubic Boron Nitride) machine turned finish, minimizing disc thickness variation and premature wear
• Heat treatment cycles that realign the microstructure of the iron for increased rotor stability and durability
• On average, these rotors last 3x longer than most other rotors on the market

Thermal Stability Profiling (TSP) is a DBA proprietary process where XG-150 grey iron is subjected to prolonged heat cycles under strictly controlled conditions to relieve internal stresses from manufacturing, ensuring maximum thermal stability and reduced metal fatigue in extremely demanding applications. The HD variant provides all the performance benefits of the 4000 Series in a clean, non-slotted design ideal for street performance, daily driving, and controlled racing divisions.