R1 Concepts 830-31039L DFC GeoPerformance Drilled Slotted Brake Rotor

The R1 Concepts 830-31039L is a high-performance drilled and slotted brake rotor featuring advanced Geomet anti-corrosion coating for superior rust protection and long-lasting appearance. Manufactured by Dynamic Friction Company (DFC) as part of the R1 Concepts product line, this rotor is engineered to deliver enhanced braking performance for daily driving, spirited street use, and light performance applications.

Key Features:

• Cross-drilled and diamond-slotted design for improved heat dissipation and maximum stopping power
• Geomet coating provides superior corrosion resistance compared to traditional zinc plating
• Precision-drilled holes are countersunk to prevent cracking and enhance rotor longevity
• Diamond slot technology removes brake dust and road debris while preventing pad glazing
• Constructed from G3000 grade cast iron for OEM-quality strength and durability
• Mill-balanced for smooth, vibration-free operation
• Direct-fit design requires no modifications for installation
• Left-side specific rotor (denoted by "L" suffix)

The drilled and slotted pattern reduces rotor temperatures by up to 105°F compared to blank rotors, helping maintain consistent brake performance during aggressive driving. The diamond-tipped slot ends also serve as a wear indicator—when the tips are worn away, it's time for rotor replacement. Ideal for enthusiasts seeking improved braking performance without the compromises of full race-spec components.