DBA DBA4200 Series HD Brake Disc Rotor - 4000

DBA (Disc Brakes Australia) DBA4200 4000 Series HD is a direct-fit, single-piece performance brake disc engineered for drivers who demand braking capability beyond standard OE levels. The HD (Heavy Duty) variant delivers all the core benefits of the acclaimed 4000 Series platform with a smooth, OE-style rotor finish — making it an ideal upgrade for street performance, spirited driving, and certain controlled racing divisions that require a clean rotor appearance.

Key Features:

• XG-150 High Carbon Alloyed Iron Construction — premium cast iron formulation provides superior thermal capacity and resistance to heat-induced distortion
• Thermal Stability Profiling (TSP) — a proprietary heat treatment process that realigns the microstructure of the iron, resulting in increased rotor stability, durability, and resistance to cracking under repeated thermal stress
• Kangaroo Paw™ Patented Vane Design — 144 diamond- and teardrop-shaped internal pillars deliver up to a 30% increase in cooling surface area and up to 20% improvement in heat dissipation versus traditional straight-vane designs
• Centre Split Core Castings — engineered for enhanced heat transfer and thermal efficiency throughout the rotor body
• CBN (Cubic Boron Nitride) Machine Turned Finish — precision surface finish minimizes disc thickness variation, reducing the potential for brake pad knock and associated premature wear
• HD Smooth Finish — clean OE-style rotor face with no slots or drilling; suitable for controlled race divisions and drivers who prefer a stock appearance
• Temperature-Indicating Paint Markings — non-friction area markings change color at specific temperature thresholds to assist with monitoring braking temperatures and rotor fatigue
• Direct OE Replacement Fit — installs without caliper relocation, bracket modifications, or any vehicle alterations

DBA has over 40 years of brake manufacturing experience and is a globally recognized benchmark in performance braking. The 4000 Series HD brake disc delivers a meaningful upgrade in thermal management, rotor longevity, and braking consistency over standard OEM replacements — all in a direct-fit package.