DBA DBA4660 Series HD Disc Brake Rotor - 4000

The DBA DBA4660 is a 4000 Series HD single-piece vented disc brake rotor engineered by Disc Brakes Australia (DBA) to deliver performance braking above and beyond standard OE levels. The HD (Heavy Duty) variant features a smooth OE-style rotor finish, making it an ideal choice for drivers who want the full performance benefits of DBA's 4000 Series platform with a factory-correct appearance — including those in controlled racing divisions where slotted or drilled surfaces are restricted.

Key Features:

• High Carbon Alloyed Iron Construction: Cast from XG-150 high carbon alloyed iron for superior heat tolerance and long-term durability under intense braking conditions.
• Thermal Stability Profiling (TSP): DBA's proprietary heat treatment process subjects the rotor to controlled, prolonged heat cycles to relieve internal manufacturing stresses, realign the iron microstructure, and maximize thermal stability and fatigue resistance.
• Kangaroo Paw Ventilation: DBA's patented internal vane design uses 144 diamond and teardrop-shaped pillars to achieve up to a 30% increase in surface area and up to 20% improvement in cooling efficiency compared to traditional straight-vane designs.
• Thermo-Graphic Heat Paint (TGHP): Color-coded paint markings change at specific temperature thresholds, allowing drivers to monitor rotor temperatures and make informed decisions about pad selection and driving habits.
• CBN Machine Turned Finish: Cubic Boron Nitride (CBN) machining minimizes disc thickness variation, reducing the risk of pad knock and premature wear.
• Rust-Resistant Coating: Non-friction areas are painted to prevent corrosion and maintain appearance throughout the rotor's service life.
• OE-Style Smooth Finish: The HD variant delivers all 4000 Series performance technology with a clean, unslotted rotor face for a stock look.
• Direct Replacement Fit: Designed as a direct drop-in replacement for a precise, hassle-free installation with no modifications required.

Backed by DBA's reputation for quality and safety, the DBA4660 is a proven upgrade over standard replacement rotors, combining performance-grade metallurgy with everyday drivability.