EBC RK552 Ultimax OE Replacement Front Disc Brake Rotor Set G3000 Grey Iron

The EBC RK552 Ultimax OE Style Disc Brake Rotor Set delivers factory-matched braking performance using premium G3000 grey cast iron — the same specification used in original equipment production. Precision-engineered to replace worn factory rotors, this set is machined to extremely tight tolerances of less than 0.05 millimeters for a direct, distortion-free fit right out of the box.

Key Features:

• G3000 Grey Iron Construction — Matches OE factory material spec for optimal heat dissipation, reduced brake noise, and long-lasting wear resistance
• 100% Runout Inspected — Every rotor is individually inspected at the factory to guarantee zero distortion and true, balanced operation
• Thermic Black Coating — Anti-corrosion coating protects the rotor during storage and shipping; naturally wears away in the pad-swept area within the first 10–20 stops after installation
• Precision CNC Machined — Diamond-turned or cross-ground brake contact surface ensures smooth, even pad engagement and quiet operation
• Vented 1-Piece Design — Internal venting promotes airflow for cooler brake temperatures and consistent stopping power
• Plain / Solid Surface — Optimized for street use with stock brake calipers and OE-compatible pad designs

Specifications:

• Rotor Style: Plain / Solid
• Construction: Vented 1-Piece
• Rotor Diameter: 11.3 in. (286 mm)
• Rotor Thickness: 12 mm
• Height: 52 mm
• Center Hole Diameter: 79 mm
• Bolt Holes: 5
• FMSI Pad No.: D781
• Country of Origin: Great Britain

EBC recommends pairing these rotors with EBC Ultimax or Yellowstuff brake pads for optimal system performance. A 500-mile break-in period with moderate braking is recommended after installation. Backed by a 12-month / 10,000-mile limited warranty covering defects in materials and workmanship for street use.