Dynamite Friction 830-80074L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-80074L) is engineered for precise braking performance on Fiat 124 Spider and Mazda MX-5 Miata models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Fiat 124 Spider and Mazda MX-5 Miata
• Directional drilled and slotted surface for improved brake cooling
• Vented rotor design to reduce heat buildup
• Rust resistant coating for extended durability
• Nominal thickness of 22 mm with a discard thickness of 20 mm
• Geospec silver grey hat finish for corrosion resistance
• 4 bolt holes with a 100 mm bolt circle diameter
• Overall diameter of 280 mm and height of 44.2 mm

Detailed Product Description

This disc brake rotor is specifically designed to meet the braking demands of the Fiat 124 Spider and Mazda MX-5 Miata. The rotor’s vented construction allows air to flow between the rotor faces, helping to dissipate heat more effectively during aggressive braking. The drilled and slotted surface pattern is directional, which aids in channeling away brake dust, gases, and water, improving pad bite and reducing brake fade. The rotor’s nominal thickness is 22 mm, with a discard thickness of 20 mm, ensuring a reliable service life before replacement is necessary.

The rotor features a plain disc finish combined with a Geospec silver grey hat finish, providing rust resistance and maintaining structural integrity over time. With 4 bolt holes and a bolt circle diameter of 100 mm, this rotor fits securely on the specified vehicles. The center hole diameter measures 55 mm, and the stud/lug hole diameter is 13.3 mm, matching factory specifications for proper fitment.

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on delivering rotors with enhanced thermal management and surface design. This product line incorporates vented rotors with directional drilled and slotted surfaces to optimize braking performance under demanding conditions. The rust resistant coatings and precision finishes contribute to durability and consistent operation, making this rotor suitable for performance-oriented vehicles like the Fiat 124 Spider and Mazda MX-5 Miata.

Common Applications and Problem Solving

• Improves brake cooling to reduce fade during spirited driving
• Helps prevent brake pad glazing by channeling away debris and gases
• Reduces rust and corrosion on rotor surfaces for longer service life
• Maintains consistent braking performance with vented rotor design
• Ensures proper fitment and secure mounting on Fiat 124 Spider and Mazda MX-5 Miata

Installation Notes and Tips

When installing the Dynamite Friction 830-80074L rotor, ensure the rotor surface is clean and free of any protective coatings before mounting. Verify the directional drilled and slotted pattern is oriented correctly according to the vehicle’s rotation direction. Check that the rotor thickness is above the discard thickness of 20 mm before installation. Use proper torque specifications for the 4 bolt holes with a 100 mm bolt circle diameter to secure the rotor safely.

Quality Assurance and Warranty

Dynamite Friction manufactures the 830-80074L rotor to meet or exceed OEM specifications for the Fiat 124 Spider and Mazda MX-5 Miata. The rust resistant coating and precision machining contribute to long-term reliability. Warranty details are provided by Dynamite Friction and should be confirmed at the time of purchase.