R1 Concepts 830-21049L Cross-Drilled Slotted Brake Rotor with Geomet Coating

The R1 Concepts 830-21049L is a high-performance cross-drilled and slotted brake rotor designed to deliver superior stopping power and extended service life. This left-side rotor features advanced Diamond Slot Technology combined with precision cross-drilling to provide maximum braking performance for daily driving, towing, hauling, and light performance applications.

Key Features:

• Cross-drilled and diamond slotted design for optimal heat dissipation and debris removal
• Geomet coating provides superior corrosion protection and extended rotor life
• Manufactured from G3000 grade cast iron for excellent strength, stability, and durability
• Precision-drilled holes reduce rotor temperatures by up to 105°F and are countersunk to prevent cracking
• Diamond slot design prevents pad glazing, extends pad life, and serves as a wear indicator
• Built to OEM specifications for direct-fit installation with no modifications required
• Left-side specific rotor (directional design)

The cross-drilled pattern enhances ventilation and dissipates heat buildup during heavy braking, while the diamond slot technology removes brake dust and road debris to maintain consistent pad contact. The Geomet coating not only protects against rust and corrosion but also reduces installation time compared to traditional coatings. When the diamond-tipped slot ends wear away, it provides a visual indicator that rotor replacement is needed.