R1 Concepts WBPN2-40009 Carbon Series Drilled Slotted Disc Brake Rotor - Set Front and Rear

The R1 Concepts WBPN2-40009 is a complete front and rear drilled and slotted disc brake rotor set from R1 Concepts' Carbon Series. Engineered to OEM specifications, this four-rotor kit is a direct-fit replacement that requires no modifications for installation.

Each rotor is cast from G3000 grade cast iron and features a carbon coating that provides superior corrosion resistance, extending rotor life and maintaining a clean appearance over time. The carbon coating covers the hub and inner vane structure to guard against rust in non-contact areas.

Key Features:

• Complete 4-Rotor Kit: Includes all four rotors (front and rear) for a full brake system upgrade in one purchase
• G3000 Cast Iron Construction: Premium-grade iron formulated with multiple alloys for improved heat dissipation and long-term durability
• Cross-Drilled Design: Precision-drilled holes with countersunk edges prevent cracking, enhance rotor ventilation, and dissipate heat more effectively during hard braking
• Diamond Slotted Pattern: Increases brake pad bite for stronger initial stopping power, extends brake pad life, and functions as a wear indicator to signal when replacement is needed
• Carbon Coating: Protects the rotor hub and vanes from corrosion, improving appearance and reducing long-term maintenance costs
• OEM-Matched Specifications: Designed to factory dimensions for a bolt-on installation with no drilling, cutting, or modifications required
• Non-Directional Surface Finish: Promotes faster, more even brake pad bed-in for quieter, smoother stops from day one

The R1 Concepts Carbon Series brake rotors deliver reliable street performance with enhanced stopping power compared to standard OEM replacements. Whether used for daily driving or more demanding conditions, these rotors provide consistent, fade-resistant braking. Note: Upon initial installation, the silver carbon coating on the braking surface (pad contact area) will wear off during the bed-in process — this is normal and expected behavior.