Dynamite Friction 830-47021L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-47021L) is engineered for Chevrolet Corvette models requiring reliable and efficient braking performance. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Chevrolet Corvette vehicles
• Directional slotted and drilled surface for improved brake pad bite and heat management
• Vented rotor design to reduce brake fade
• Rust resistant coating for extended durability
• Geospec silver grey hat finish for corrosion resistance and aesthetic appeal
• Nominal thickness of 20 mm with a discard thickness of 18.4 mm
• 305 mm outside diameter and 55.6 mm overall height
• Five bolt holes with 13 mm diameter and 120.7 mm bolt circle diameter

Product Line Details: DFC Geoperformance Rotor - Drilled and Slotted

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors that combine drilled holes and precision slots to optimize braking performance. This design helps evacuate gases, dust, and water from the rotor surface, improving pad contact and reducing the risk of brake fade. The directional surface pattern is engineered to work with specific pad materials and vehicle dynamics, making it suitable for performance-oriented Chevrolet Corvette applications.

Technical Specifications and Features

This disc brake rotor is vented to allow airflow between the rotor faces, which helps dissipate heat generated during braking. The rotor’s nominal thickness is 20 mm, with a discard thickness of 18.4 mm, ensuring a clear service life indicator. The rotor features a plain disc finish and a Geospec silver grey finish on the hat, providing corrosion resistance. The bolt hole diameter and stud/lug hole diameter are both 13 mm, with five holes arranged on a 120.7 mm bolt circle diameter. The center hole diameter measures 70.7 mm, and the overall height is 55.6 mm. These precise dimensions ensure proper fitment and secure mounting on Chevrolet Corvette models.

Applications and Problem Solving

• Replacement rotor for worn or warped Chevrolet Corvette brake rotors
• Improves heat dissipation to reduce brake fade during aggressive driving
• Helps maintain consistent braking performance in wet or dusty conditions
• Addresses rotor corrosion issues with rust resistant coating
• Enhances brake pad bite and reduces brake noise with slotted and drilled design

Installation Notes and Tips

Ensure the rotor is compatible with your Chevrolet Corvette model before installation. Clean the hub surface to remove rust or debris for proper rotor seating. Torque lug nuts to manufacturer specifications using a star pattern to avoid rotor warping. Inspect brake pads and replace if worn to maximize the benefits of the drilled and slotted rotor surface. Avoid using aggressive cleaning chemicals on the rotor surface to maintain the rust resistant coating.

Quality Assurance

Dynamite Friction manufactures the 830-47021L rotor to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and precision machining contribute to long service life and reliable braking performance. Warranty information is available through Dynamite Friction and should be confirmed at the time of purchase.