DBA DBA4798 Series HD Plain Disc Brake Rotor - 4000 Front

The DBA DBA4798 is a 4000 Series HD plain (smooth) front disc brake rotor from Disc Brakes Australia — a direct OE replacement engineered for drivers who want performance above factory levels without a slotted or drilled surface profile.

4000 Series HD Construction:

• Smooth OE-style friction surface — the HD plain variant delivers 4000 Series internal engineering with a factory-compatible rotor face, suitable for controlled race divisions and street use
• XG-150 high carbon alloyed iron construction — provides superior strength, heat tolerance, and wear resistance compared to standard grey iron rotors
• Thermal Stability Profiling (TSP) — DBA's proprietary process subjects the iron to controlled, prolonged heat cycles to relieve internal manufacturing stresses, maximizing thermal stability and reducing metal fatigue under demanding conditions
• Patented Kangaroo Paw vane design — 144 diamond and teardrop-patterned internal pillars deliver up to 30% more surface area and 20% better cooling efficiency versus traditional straight-vane rotors
• Direct bolt-on replacement — no caliper relocation or brackets required; designed to match OE mounting dimensions
• Thermo-Graphic Heat Paint — color-change paint markings indicate critical temperature thresholds to assist with rotor temperature monitoring

DBA's 4000 Series rotors are a single-piece design built for drivers seeking upgraded braking performance beyond OE standards. The HD plain variant is the ideal choice for those who prefer a smooth rotor face — whether for street performance, towing, or class-regulated motorsport use. Pair with appropriate performance brake pads for best results.