Dynamite Friction 900-31130 Disc Brake Rotor - Rear

Reliable Performance with Dynamite Friction Disc Brake Rotor

The Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor (part number 900-31130) offers a precise fit and durable braking solution for select BMW and Toyota models. Designed to meet OEM specifications, this vented disc brake rotor ensures consistent heat dissipation and braking performance.

• Nominal thickness of 24 mm with a discard thickness of 22.4 mm for extended service life
• Vented rotor design enhances cooling and reduces brake fade
• Outside diameter of 345 mm and inside diameter of 67 mm for exact fitment
• Five bolt holes with a diameter of 16.7 mm for secure mounting
• Height of 64.1 mm to match factory specifications

About the DFC Hi-Carbon Alloy GEOMET Coated Rotor Line

The DFC Hi-Carbon Alloy GEOMET Coated Rotor line from Dynamite Friction features rotors manufactured with high-carbon alloy material and a GEOMET coating. This combination improves rotor durability and corrosion resistance, making it suitable for vehicles requiring reliable braking under varied driving conditions. The coating also helps reduce noise and vibration, contributing to a smoother braking experience.

Technical Details and Compatibility

This disc brake rotor is vented to optimize heat dissipation during braking, which helps maintain consistent performance and reduces the risk of warping. With a nominal thickness of 24 mm and a discard thickness of 22.4 mm, it provides a balance between durability and safety. The rotor’s 345 mm outside diameter and 67 mm inside diameter ensure proper fitment on compatible vehicles. Featuring five bolt holes with a 16.7 mm diameter, it securely mounts to the hub assembly. The 64.1 mm height matches OEM specifications for a precise installation.

Compatible Vehicles

• BMW 230i, 230i xDrive, 330e, 330e xDrive, 330i, 330i xDrive
• BMW 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe
• BMW 530e, 530e xDrive, 530i, 530i xDrive, 540i, 540i xDrive
• BMW 640i xDrive Gran Turismo, 740e xDrive, 740i, 740i xDrive, 745e xDrive
• BMW 750i, 750i xDrive, 750Li xDrive, 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe
• BMW GR Supra, i4, i5, iX, M240i, M240i xDrive, M340i, M340i xDrive
• BMW M440i, M440i Gran Coupe, M440i xDrive, M440i xDrive Gran Coupe, M550i xDrive
• BMW X3, X4, X5, X6, X7, Z4
• Toyota models compatible as specified

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading to vented rotors for improved heat dissipation
• Addressing rotor thickness below discard limits to maintain braking safety
• Reducing brake noise and vibration with GEOMET coated surface
• Ensuring proper fitment on BMW and Toyota vehicles requiring 345 mm rotors

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets or exceeds the discard thickness of 22.4 mm. Clean the rotor surface to remove any protective coating before mounting. Verify bolt hole alignment with the hub assembly using the 16.7 mm bolt hole diameter and five-bolt pattern. Proper torque specifications should be followed to avoid rotor warping. It is recommended to replace brake pads simultaneously for optimal braking performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Hi-Carbon Alloy GEOMET Coated Rotor to meet strict quality standards, ensuring durability and consistent braking performance. The high-carbon alloy construction combined with the GEOMET coating provides corrosion resistance and extended rotor life. Please refer to Dynamite Friction’s warranty policy for specific coverage details related to part number 900-31130.