DBA DBA52604.1 5000 Series HD Brake Disc Ring Replacement Rotor Ring

The DBA DBA52604.1 5000 Series HD Brake Disc Ring is a replacement outer ring designed for DBA's two-piece composite brake rotor system. Built by Disc Brakes Australia (DBA), this HD variant features a smooth OE-style rotor finish — ideal for drivers who want the performance advantages of the 5000 Series without slotted, cross-drilled, or dimpled surface treatments.

Constructed from high carbon cast iron, the disc ring pairs with an aerospace-grade T6061-T6 aluminum hat and is secured using National Aerospace Standards (NAS) bolts and crimp nuts. This two-piece architecture allows for uniform radial disc expansion, reduced unsprung weight, and minimized heat transfer from the disc to the wheel hub.

Key Features:

• High Carbon Cast Iron Construction — Delivers superior wear resistance and thermal stability under demanding braking conditions
• Two-Piece Composite Design — Replacement ring is compatible with existing DBA 5000 Series aluminum hats, allowing cost-effective ring-only replacement
• Thermal Stability Profiling (TSP) — Proprietary DBA heat treatment process relieves internal casting stresses for maximum rotor stability and reduced metal fatigue
• Thermo-Graphic Heat Paint (TGHP) — Color-coded paint markings change at critical temperature thresholds, helping drivers monitor braking temperatures and select the appropriate brake pads
• CBN Machine Turned Finish — Cubic Boron Nitride machining minimizes disc thickness variation, reducing the risk of pad knock and premature wear
• Smooth HD Finish — OE-style surface for street-friendly performance without aggressive surface treatments
• Anodized Aluminum Hat Compatibility — Designed to work with DBA's corrosion-resistant anodized aluminum hat for a long-lasting, great-looking assembly

DBA recommends the 5000 Series for high-performance street vehicles, track day and club racing, and rally applications. Whether you're replacing worn rings on an existing DBA two-piece assembly or building a new performance brake setup, the DBA52604.1 delivers the engineering precision and durability that DBA is known for worldwide.