DBA DBA42281XD Series XD Cross-Drilled Dimpled Brake Rotor - 4000 Rear

The DBA DBA42281XD is a 4000 Series XD performance brake rotor featuring DBA's signature non-directional cross-drilled and dimpled surface finish. Engineered as a direct-fit, single-piece replacement rotor, it delivers upgraded stopping power beyond OE levels for performance-oriented driving.

4000 Series XD Design:

• Cross-Drilled & Dimpled Surface: The XD finish combines cross-drilled holes with dimples, providing additional cooling capacity above the standard HD spec while adding a sporty, high-performance aesthetic.
• Enhanced Structural Support: The mix of dimples and drilled holes offers improved rotor structural integrity compared to traditional cross-drilled-only designs.
• Kangaroo Paw Ventilation: DBA's patented internal vane design uses 144 diamond and teardrop-shaped pillars to deliver up to a 30% increase in surface area and up to 20% improvement in cooling efficiency versus conventional straight-vane rotors.
• High Carbon Alloy Iron Construction: Cast from XG-150 high carbon alloyed iron for superior heat absorption and thermal management under aggressive braking demands.
• Thermal Stability Profiling (TSP): A proprietary DBA heat-treatment process that relieves internal manufacturing stresses, maximizing thermal stability and reducing metal fatigue during sustained heavy braking.
• Thermo-Graphic Heat Paint (TGHP): Color-changing paint indicators alert drivers when the rotor reaches critical temperature thresholds, enabling better pad selection decisions and monitoring of rotor fatigue.
• Symmetrical Design: Non-directional cross-drilling and dimpling allow for universal left/right fitment.
• Corrosion Protection: Non-friction areas are painted to prevent rust and maintain appearance.

Note: Cross-drilled rotor configurations are not recommended for heavy off-road or dedicated track day use. This rotor is ideal for high-performance street driving.