Dynamite Friction 830-21048R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-21048R) is engineered for Hyundai and Kia vehicles, including the K5, Palisade, and Sonata models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Nominal thickness: 30 mm with a discard thickness of 28 mm
• Outside diameter: 345 mm
• Height: 48.7 mm
• Directional slotted and drilled surface for improved brake pad contact and cooling
• Vented rotor design to reduce heat buildup
• Rust resistant coating for extended durability
• Geospec silver grey hat finish for corrosion resistance and aesthetic appeal
• 5 bolt holes with 12.6 mm diameter and 114.3 mm bolt circle diameter
• Center hole diameter: 69 mm

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors that combine drilled holes and precision slots with a vented design. This combination helps maintain optimal braking performance by improving heat dissipation and reducing brake fade. The directional surface pattern is engineered to channel gases and debris away from the rotor surface, which is particularly beneficial for vehicles like the Hyundai Sonata, K5, and Kia Palisade that require reliable braking under varied driving conditions.

Detailed Product Description

This disc brake rotor is designed with a nominal thickness of 30 mm and a discard thickness of 28 mm, ensuring a long service life before replacement is necessary. The rotor’s 345 mm outside diameter and 48.7 mm height provide a precise fit for compatible Hyundai and Kia models. The vented rotor design allows air to flow between the rotor surfaces, reducing heat buildup during braking. The drilled and slotted surface improves pad bite and helps evacuate water, dust, and gases, which can otherwise reduce braking efficiency. The rust resistant coating and Geospec silver grey hat finish protect against corrosion, extending the rotor’s durability and maintaining performance over time.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Hyundai K5, Palisade, and Sonata
• Improves braking performance in wet or dusty conditions
• Reduces brake fade during extended or aggressive driving
• Helps prevent rotor rust and corrosion for longer service life
• Addresses vibration or noise issues caused by uneven rotor surfaces

Installation Notes and Tips

Ensure the rotor surface is clean and free of any contaminants before installation. Verify that the rotor thickness is within the specified nominal and discard limits. Use the correct torque specifications for the 5 bolt holes with a 12.6 mm diameter and 114.3 mm bolt circle diameter. The directional slotted and drilled surface must be installed following the rotation direction indicated on the rotor to maintain optimal performance.

Quality Assurance

Dynamite Friction rotors, including the 830-21048R, are manufactured to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and precision machining ensure consistent performance and durability. Warranty information is available through the manufacturer and should be consulted for specific coverage details.