Dynamite Friction 830-31064R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31064R) is engineered for BMW 535i, 545i, 550i, 645Ci, and 650i models. This vented disc brake rotor combines drilled and slotted surface features with a rust-resistant coating to enhance braking performance and durability.

• Compatible with BMW 535i, 545i, 550i, 645Ci, and 650i
• Part number 830-31064R
• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness of 24 mm and discard thickness of 22.4 mm
• Overall diameter of 345 mm and height of 63.2 mm
• Directional brake surface design for optimized heat dissipation
• Rust-resistant coating with Geospec silver grey hat finish
• 5 bolt holes with 14.5 mm diameter and 120 mm bolt circle diameter

Detailed Product Features and Specifications

The DFC Geoperformance Rotor - Drilled and Slotted is designed to meet the specific braking requirements of select BMW models. Its vented rotor design improves heat dissipation during braking, reducing the risk of brake fade under demanding conditions. The rotor features a directional surface with both drilled holes and slots, which help to evacuate gases, dust, and water from the braking surface, maintaining consistent pad contact and performance.

With a nominal thickness of 24 mm and a discard thickness of 22.4 mm, this rotor ensures a reliable service life while maintaining safety standards. The rotor's outside diameter measures 345 mm, and the overall height is 63.2 mm, matching OEM specifications for proper fitment. The hat section is finished in Geospec silver grey, providing corrosion resistance along with a rust-resistant coating applied to the entire rotor surface.

About the DFC Geoperformance Rotor - Drilled and Slotted Line

The DFC Geoperformance Rotor - Drilled and Slotted product line focuses on delivering rotors that combine advanced surface treatments with structural venting to optimize braking efficiency and rotor longevity. This line is engineered to provide enhanced thermal management and improved pad bite through its directional drilled and slotted design, making it suitable for performance-oriented BMW vehicles such as the 535i, 545i, 550i, 645Ci, and 650i.

Applications and Problem Solving

• Reduces brake fade during high-performance or repeated braking
• Improves water and debris evacuation for consistent braking in wet conditions
• Minimizes rotor warping through enhanced heat dissipation
• Prevents rust and corrosion with protective coating
• Maintains OEM fitment and braking performance for BMW 5 and 6 Series models

Installation Notes and Tips

Ensure the rotor surface is clean and free of any contaminants before installation. Verify that the rotor thickness is above the discard thickness of 22.4 mm to maintain safety. Use proper torque specifications for the 5 bolt holes with 14.5 mm diameter and 120 mm bolt circle diameter to secure the rotor. Directional rotors must be installed following the indicated rotation direction to ensure optimal performance.

Quality Assurance and Warranty

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 specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliability and consistent braking performance for BMW 535i, 545i, 550i, 645Ci, and 650i vehicles.