EBC S20K1118 Stage 20 Ultimax Brake Pads & RK Rotor Kit Front and Rear

The EBC S20K1118 is a complete two-axle disc brake kit that pairs EBC's Ultimax brake pads with RK Series OEM-replacement rotors for both the front and rear axles — delivering a balanced, full-system brake upgrade in a single package. The kit also includes caliper lubricant for a thorough, professional-quality installation.

Ultimax Brake Pads:

• Engineered with a patented low-metallic aramid fiber compound (utilizing DuPont Kevlar and Twaron composites) that significantly reduces abrasive rotor wear
• Fully shimmed and chamfered to minimize vibration, judder, and brake noise
• Treated with EBC's patented Brake-In™ red top coating that scours away glaze and heat spots from the rotor surface during initial use, enabling faster and more even pad seating after installation
• Designed to match OEM dimensions with tight manufacturing tolerances for proper fit and even wear

RK Series Rotors:

• Direct-fit OEM replacement design — no modifications required for installation
• Constructed from high-quality gray iron with elevated carbon content to reduce brake shudder, heat cracking, and high-frequency vibrations
• Geomet anti-rust surface coating protects against road salts, brine, and corrosion
• Vented center design promotes airflow between rotor faces for more effective heat dissipation and reduced pad fade
• Fully balanced and runout-tested at the factory for smooth, vibration-free braking

Why Replace Front and Rear Together?

Maximum braking performance is only achieved when all four corners are working in harmony. Rear brakes account for up to 40% of a vehicle's total stopping power, yet they are frequently overlooked during brake service. Renewing both axles simultaneously with the S20K1118 ensures balanced deceleration, even wear, and optimal safety.

The S20 kit is recommended by EBC for normal street driving, high-performance street use, trucks, SUVs, and short track runs.