DuraGo BR900730 Disc Brake Rotor - Front

Durable Cast Iron Disc Brake Rotor for BMW Models

The DuraGo BR900730 disc brake rotor is engineered to provide reliable braking performance for select BMW vehicles. Designed with vented construction and precise dimensions, this rotor ensures consistent heat dissipation and durability for your BMW 525i, 528i, 530i, and 535i xDrive models.

• Material: Full cast iron construction for strength and heat resistance
• Vented rotor design to improve cooling and reduce brake fade
• Nominal thickness of 1.18 inches (30 mm) with discard thickness at 1.12 inches (28.4 mm)
• Outside diameter of 12.76 inches (324 mm) for exact fitment
• Five mounting bolt holes with a 4.72 inch (120 mm) bolt circle diameter
• Non-directional brake surface suitable for various driving conditions
• Compatible with BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i xDrive, and 535xi models

Technical Details and Construction

The BR900730 rotor features a full cast iron build, providing a balance of durability and thermal conductivity essential for effective braking. Its vented design allows air to flow between the rotor surfaces, helping to dissipate heat generated during braking and reducing the risk of warping. With a nominal thickness of 1.18 inches and a discard thickness of 1.12 inches, this rotor maintains structural integrity throughout its service life. The 12.76-inch outside diameter and five mounting bolt holes with a 4.72-inch bolt circle diameter ensure precise compatibility with specified BMW models.

Compatible BMW Models and Applications

This DuraGo disc brake rotor is compatible with a range of BMW vehicles, including the 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i xDrive, and 535xi. It is designed for use as a conventional, non-directional rotor without ABS tone ring, making it suitable for standard braking systems on these models.

• Addresses brake rotor wear and thickness below manufacturer specifications
• Helps reduce brake noise and vibration caused by warped rotors
• Improves braking performance by restoring proper rotor surface condition
• Replaces damaged or scored rotors to maintain safe stopping power

Installation Notes and Tips

When installing the DuraGo BR900730 rotor, ensure the mounting surface is clean and free of debris to prevent uneven rotor seating. Verify the rotor thickness before installation to confirm it meets the minimum discard thickness of 1.12 inches. Use proper torque specifications for the five mounting bolts to avoid rotor distortion. This rotor does not include an ABS tone ring, so confirm compatibility with your vehicle’s braking system.

Quality Assurance and Warranty

DuraGo manufactures the BR900730 rotor to meet or exceed OEM standards for fit, form, and function. The full cast iron construction and vented design contribute to consistent braking performance and durability. While specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship.