DBA DBA42688 Series HD Performance Disc Brake Rotor - 4000

The DBA DBA42688 is a 4000 Series HD disc brake rotor from Disc Brakes Australia — a direct-fit, single-piece performance rotor engineered for drivers who demand braking capability beyond standard OE levels while maintaining a clean, factory-style appearance.

The 4000 Series HD variant features a smooth OE-style rotor finish, making it a popular choice for drivers who want the full performance benefits of the 4000 Series platform without the drilled or slotted aesthetics — ideal for controlled race divisions or street builds where a stock look is required.

Key Features:

• XG-150 High Carbon Alloyed Iron Construction — Cast from premium high-carbon iron for superior heat resistance and long-term durability under intense braking conditions
• Thermal Stability Profiling (TSP) — DBA's proprietary heat-cycling process relieves internal casting stresses, maximizing thermal stability and reducing metal fatigue in demanding applications
• Kangaroo Paw Vane Technology — Patented internal ventilation design uses 144 diamond and teardrop-shaped pillars to deliver up to 30% more surface area and 20% improved cooling efficiency versus traditional straight-vane rotors
• Smooth OE-Style Finish — Clean friction surface with no slots or drilling, satisfying controlled race division regulations and OEM appearance requirements
• Thermo-Graphic Heat Paint (TGHP) — Color-changing paint markings on non-friction areas indicate when specific temperature thresholds have been reached, helping monitor rotor health and braking temperatures
• Painted Non-Friction Surfaces — Rust-inhibiting paint applied to hat and non-contact areas to protect appearance and longevity
• Direct OE Replacement Fit — Single-piece design installs like stock with no modifications required

Backed by DBA's decades of motorsport and OE supply experience, the 4000 Series HD rotor delivers a meaningful upgrade in heat management and structural integrity over standard replacement rotors, making it well-suited for performance street driving, towing, and light track use.