DBA DBA52223.1 Series HD Two-Piece Brake Disc Ring - 5000 350mm

The DBA DBA52223.1 is a front 5000 Series HD replacement brake disc ring offering a smooth, OE-style rotor finish. It is ideal for drivers who want the performance advantages of the 5000 Series platform without slotted, cross-drilled, or dimpled surface designs.

As a composite two-piece direct replacement rotor ring, this disc is engineered to deliver exceptional braking performance under the most demanding conditions. DBA constructs the 5000 Series using high carbon cast iron rings paired with aerospace-grade T6061-T6 aluminium hats, secured together with National Aerospace Standards (NAS) bolts and crimp nuts for a precision, durable assembly.

Key Features:

• Smooth HD Surface: OE-style finish with no slots, cross-drilling, or dimples — clean look with 5000 Series internals
• Two-Piece Composite Design: High carbon cast iron ring combined with an aerospace-grade aluminium hat for weight savings and superior heat management
• Aluma-Lite Aluminium Hat: 6061-T6 aircraft aluminium reduces unsprung weight for improved handling and minimises heat transfer to wheel hubs
• Uniform Radial Disc Expansion: Aluminium hat design allows the cast iron ring to expand uniformly, reducing the risk of disc warping
• Thermal Stability Profiling: Heat treatment cycles realign the microstructure of the iron for increased rotor stability and long-term durability
• Anodised Aluminium Hat: Corrosion-resistant anodised finish prevents rust and enhances appearance
• Sold as Individual Ring: Replacement ring compatible with existing DBA 5000 Series aluminium hats — cost-effective for repeat replacements
• NAS Hardware Torque Spec: Tighten NAS nut and bolt assembly to 13 Nm (9.6 ft-lb)

The 5000 Series HD is recommended for high performance street vehicles, track day and club racing, rally applications, and show vehicles. DBA's two-piece rotor system allows drivers to replace only the cast iron ring while reusing their existing aluminium hat, making maintenance more economical for performance enthusiasts who are hard on brakes.