DBA DBA52834.1S Series Slotted Brake Disc Ring Two-Piece Replacement - 5000 T3

The DBA DBA52834.1S 5000 Series T3 Slotted Brake Disc Ring is a high-performance replacement rotor ring engineered for two-piece composite brake rotor assemblies. Designed to replace just the outer friction ring, it allows drivers to retain their existing DBA 5000 Series aluminum hat while restoring full braking performance.

Built on the same proven platform as the acclaimed DBA 4000 Series, the 5000 Series raises the bar with a two-piece composite construction that pairs a high carbon cast iron rotor ring with an aerospace-grade T6061-T6 aluminum hat, secured by National Aerospace Standards (NAS) bolts and crimp nuts. This pairing reduces unsprung weight, allows for uniform radial disc expansion through the cast iron ring, and minimizes heat transfer from the disc to the hub.

T3 Bi-Directional Slotting is DBA's patented non-directional slot design featuring two symmetrical slots that continuously sweep friction dust and gases away from the pad surface, delivering a cleaner, quieter, and more responsive brake pedal feel. Because the slots are bi-directional, a single rotor ring services both left and right positions.

Every 5000 Series ring undergoes DBA's proprietary Thermal Stability Profiling (TSP) process, in which XG-150 grey iron is subjected to prolonged, strictly controlled heat cycles to relieve internal manufacturing stresses. The result is maximum thermal stability, improved fatigue resistance, and reduced surface cracking under sustained heavy braking demands.

Additional precision is achieved through a CBN (Cubic Boron Nitride) machine-turned finish that minimizes disc thickness variation, reducing the risk of pad knock and premature wear. DBA's patented Thermo-Graphic Heat Paint (TGHP) markings are applied as a standard feature, providing a visual indicator of rotor operating temperatures.

Key Features:

• Replacement outer disc ring for DBA and compatible two-piece rotor assemblies
• High carbon cast iron construction with Thermal Stability Profiling (TSP)
• T3 patented bi-directional slotting — suitable for left or right installation
• CBN machine-turned finish for minimal disc thickness variation
• Thermo-Graphic Heat Paint (TGHP) temperature indicator markings
• Anodized non-friction areas for corrosion resistance and improved appearance
• Recommended for high-performance street, track day, club racing, and rally use

The DBA52834.1S is a cost-effective solution for drivers looking to refresh their two-piece rotor setup without replacing the entire assembly. Pair with DBA performance brake pads for optimal system performance.