DBA DBA53146.1S 5000 Series T3 Slotted Brake Rotor Ring with Kangaroo Paw Vanes

The DBA DBA53146.1S is a 5000 Series T3 slotted replacement rotor ring engineered for high-performance street and track applications. As a flat disc replacement (ring only), it is designed to replace just the cast iron rotor ring in existing DBA 5000 Series two-piece assemblies or other compatible two-piece rotor configurations—delivering a cost-effective performance upgrade without replacing the aluminum hat.

T3 Bi-Directional Slot Design:

The patented T3 slot pattern features precisely CNC-machined tri-symmetrical slots that efficiently channel brake pad friction dust and gases away from the rotor face, resulting in a quieter, more responsive, and smoother braking experience. The bi-directional design makes this rotor suitable for use on either side of the vehicle.

Key Features:

• Kangaroo Paw Ventilation: DBA's signature vane design provides up to 20% better heat dissipation compared to conventional vented rotors, increasing braking effectiveness and prolonging rotor life
• High Carbon Alloyed Iron: XG-150 grey iron construction for optimal thermal stability and superior resistance to metal fatigue under extreme heat
• Thermal Stability Profiling (TSP): Each rotor ring undergoes DBA's proprietary heat cycling process to relieve internal manufacturing stresses and maximize dimensional stability
• CBN Machine Turned Finish: Cubic Boron Nitride surface machining minimizes disc thickness variation, reducing the potential for pad knock and premature wear
• Thermo-Graphic Heat Paint (TGHP): Color-coded paint stripes (Green, Orange, Red) change color at specific temperature thresholds, helping drivers monitor rotor temperatures and select appropriate brake pads
• NAS Nuts Included: National Aerospace Standards crimp nuts are included for secure, high-strength assembly at minimal weight
• Ring-Only Replacement: Designed as a flat disc replacement—reuse your existing DBA 5000 Series aluminum hat for an economical upgrade

Recommended torque for NAS nut and bolt assembly is 13 Nm (9.6 ft-lb). Ideal for high-performance street driving, track days, club racing, and rally applications. Always clean the rotor surface with brake parts cleaner (not carburetor cleaner) prior to installation.