DBA DBA52923.1LS 5000 Series T3 Slotted Brake Disc Ring 355x32mm Brembo Replacement

The DBA DBA52923.1LS is a 5000 Series T3 slotted brake disc ring measuring 355x32mm, engineered as a direct replacement rotor ring for DBA two-piece rotor assemblies designed for Brembo caliper applications. This is a rotor ring only — intended for use with a DBA center hat — and is not a direct replacement for OEM factory rotor rings.

DBA's 5000 Series represents the pinnacle of the company's two-piece performance rotor technology, building on all the features of the 4000 Series while adding meaningful upgrades in weight reduction and heat management. The rotor ring is constructed from high-carbon cast iron, delivering superior thermal capacity and resistance to cracking and warping under extreme braking loads.

Key Features:

• T3 Bi-Directional Slot Design — DBA's patented T3 slotting pattern promotes consistent pad bite, continuously clears friction material resins, and minimizes pad glazing under hard use
• High-Carbon Cast Iron Ring — XG150 high-carbon alloyed iron construction increases thermal capacity and resistance to heat-induced warping
• Proprietary TSP Heat Treatment — Thermally treated iron provides added strength and long-term durability under repeated high-stress braking events
• Two-Piece Composite Construction — Rotor ring is designed to pair with DBA's aerospace-grade T6061-T6 aluminum hat, secured by National Aerospace Standards (NAS) bolts and crimp nuts for a precision, rattle-free assembly
• Uniform Radial Disc Expansion — The floating ring design allows the cast iron to expand thermally without distortion or stress on the hub assembly
• Reduced Heat Transfer to Hub — The two-piece design limits heat migration from the rotor ring to the wheel bearing and hub components
• Thermo-Graphic Paint Markings — Visual heat indicators help monitor operating temperatures during track or performance use
• 355x32mm Rotor Dimensions — Sized specifically as a Brembo caliper replacement ring
• Hardware included

With over four decades of manufacturing expertise, Disc Brakes Australia (DBA) is a globally recognized leader in performance brake rotor engineering. The 5000 Series T3 slotted disc ring is the ideal upgrade or replacement for drivers running DBA two-piece rotor systems who demand consistent, fade-resistant stopping power under demanding street, track, or performance driving conditions.