R1 Concepts 631-92085L RNC Series Drilled & Slotted Brake Rotor Left

The R1 Concepts 631-92085L RNC Series Brake Rotor is a high-performance drilled and slotted replacement rotor designed for drivers seeking improved braking performance over a standard OE-style smooth rotor. This is the left-side (driver side) rotor, engineered to deliver consistent stopping power with enhanced heat dissipation and gas venting.

Key Features:

• Drilled & Slotted Design: Combination cross-drilled holes and machined slots work together to evacuate heat, gas, and brake dust buildup for fade-resistant braking performance
• Left-Side (Driver Side) Fitment: Directional rotor engineered specifically for the left/driver-side wheel position
• G3000 Grade Cast Iron Construction: Premium gray iron casting meets or exceeds OEM metallurgical standards for durability and thermal stability
• Zinc Dichromate Coating: Corrosion-resistant finish protects non-swept rotor surfaces from rust and surface oxidation during storage and initial use
• OEM Dimensional Accuracy: Precision-machined to factory specifications for a direct bolt-on installation with no modifications required
• Balanced & Tested: Each rotor is precision balanced and meets strict runout and thickness variation tolerances for vibration-free operation

R1 Concepts' RNC Series rotors are an ideal upgrade for daily drivers and performance-oriented vehicles looking to improve brake response and rotor longevity. Designed for straightforward replacement installation, this rotor is compatible with OEM and aftermarket brake pads.