R1 Concepts 631-58007L RNC Series Drilled & Slotted Brake Rotor

The R1 Concepts 631-58007L is a precision-engineered RNC Series drilled and slotted brake rotor designed for drivers who demand improved stopping performance over a standard OEM replacement rotor. This single rotor is manufactured to strict dimensional tolerances to ensure a direct-fit installation with no modification required.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes and machined slots work together to evacuate heat, gas, and brake dust from the rotor surface, maintaining consistent pad-to-rotor contact and reducing brake fade under demanding conditions
• Zinc Dichromate Coating: A corrosion-resistant zinc coating is applied to the non-contact surfaces (hat and outer edge) to prevent rust and maintain a clean appearance behind the wheel
• G3000 Grade Casting: Cast from high-quality G3000 gray iron for optimal thermal stability, wear resistance, and consistent friction characteristics
• Balanced & Tested: Each rotor is precision-balanced and tested for runout to ensure vibration-free, smooth braking performance
• Direct OEM Replacement: Engineered to match original equipment dimensions and bolt patterns for a straightforward, no-hassle installation

The R1 Concepts RNC line is ideal for drivers looking to upgrade from plain OEM rotors with a performance-oriented option that also delivers improved wet-weather braking response. The slotted channels help wipe the pad surface clean with each rotation, while the drilled holes aid in rapid heat dissipation. This rotor ships individually — verify your application to confirm whether a single or pair is required for your axle.