Dynamite Friction 830-21034L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-21034L) is engineered for reliable braking performance on select Hyundai and Kia models. Designed with a directional slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.

• Compatible with Hyundai Elantra, Elantra GT, Ioniq, Veloster and Kia Forte, Forte5, K4, Niro, Soul
• Directional drilled and slotted disc surface for improved brake pad bite and heat management
• Rust resistant coating to reduce corrosion and extend rotor life
• Plain disc finish with Geospec silver grey hat finish for durability and appearance
• Precision fit with 5 bolt holes, 12.5 mm bolt hole diameter, and 114.3 mm bolt circle diameter
• Nominal thickness of 10 mm and discard thickness of 8.4 mm for safe service limits
• Outside diameter of 262 mm and height of 32.2 mm for exact fitment

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line focuses on rotors that combine drilled holes and slots in a directional pattern. This design improves water and gas evacuation from the braking surface, reducing brake fade and maintaining consistent stopping power. The rotors feature a rust resistant coating and a Geospec silver grey hat finish, enhancing both corrosion resistance and visual appeal. This product line is tailored for drivers seeking rotors that balance performance and durability on street-driven vehicles.

Detailed Product Description

The 830-21034L rotor is a disc brake rotor specifically designed for Hyundai and Kia vehicles including the Elantra, Forte, and Soul models. Its directional slotted and drilled surface improves braking efficiency by allowing gases and debris to escape, which helps maintain pad contact and reduces heat buildup. The rotor’s nominal thickness is 10 mm, with a discard thickness of 8.4 mm, ensuring clear service limits for safety. The rotor’s 5 bolt holes with a 12.5 mm diameter and a 114.3 mm bolt circle diameter provide precise fitment. The plain disc finish combined with a Geospec silver grey hat finish offers corrosion resistance and a clean appearance. The rotor’s 262 mm outside diameter and 32.2 mm height are engineered to meet exact OEM specifications for the listed Hyundai and Kia models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading to drilled and slotted rotors for improved heat dissipation
• Addressing rust and corrosion issues on factory rotors
• Improving braking performance on Hyundai Elantra and Kia Forte models
• Maintaining consistent brake pad contact under heavy braking conditions

Installation Notes and Tips

Ensure the rotor thickness is measured before installation; replace if below the discard thickness of 8.4 mm. Clean the rotor surface to remove any protective coating before mounting. Confirm bolt hole alignment with the vehicle’s hub using the 5 bolt holes and 114.3 mm bolt circle diameter. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. Directional rotors must be installed with the correct rotation direction to maintain performance benefits.

Quality Assurance

Dynamite Friction rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The rust resistant coating and Geospec silver grey hat finish contribute to long-term durability. While no specific warranty information is provided, these rotors are designed for reliable performance on compatible Hyundai and Kia vehicles when installed and maintained according to manufacturer guidelines.