DBA DBA52992.1 5000 Series HD Brake Disc Ring Replacement Rotor

The DBA DBA52992.1 5000 Series HD Brake Disc Ring is a direct replacement cast iron rotor ring designed for use with DBA's two-piece 5000 Series brake rotor system. Featuring a smooth, OE-style rotor finish, the HD variant delivers all the performance advantages of the 5000 Series platform without slots, cross-drilling, or dimpled surface designs — making it an ideal choice for drivers who want premium two-piece rotor technology in a clean, street-focused package.

Key Features:

• High Carbon Cast Iron Ring — Engineered from high carbon alloyed iron for superior thermal capacity, reduced metal fatigue, and prolonged rotor life under extreme braking conditions
• Two-Piece Composite Design — Cast iron ring pairs with a separate aerospace-grade T6061-T6 aluminium hat (Aluma-Lite), reducing unsprung weight and improving vehicle handling
• Uniform Radial Expansion — The two-piece construction allows the cast iron ring to expand radially without stressing the aluminium hat, minimizing warping and improving rotor longevity
• Reduced Heat Transfer — Aluminium hat construction minimizes heat transfer from the rotor ring to the wheel hub assembly
• Thermal Stability Profiling (TSP) — DBA's proprietary heat treatment process subjects the high carbon iron to controlled heat cycles, relieving internal stress from manufacturing and maximizing thermal stability in high-demand applications
• Thermo-Graphic Heat Paint (TGHP) — Factory-applied heat paint markings permanently change color at specific temperature thresholds, allowing drivers to monitor rotor fatigue and peak braking temperatures
• Smooth OE-Style Finish — No slots, drilled holes, or dimples; ideal for daily driving and show vehicle applications requiring a factory-clean appearance
• Economical Replacement — Sold as a standalone ring, allowing owners of existing DBA 5000 Series assemblies to replace only the worn cast iron ring while reusing their aluminium hat

DBA recommends inspecting the aluminium hat for wear and damage whenever replacing the ring only, and specifies 13 Nm (9.6 ft-lb) of torque when reassembling with NAS bolts and crimp nuts. The 5000 Series HD is recommended for high-performance street vehicles, track day use, club racing, and rally applications.