PowerStop EBR1221EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet High Carbon Coated Rotor Overview

The Power Stop - Rear Genuine Geomet High Carbon Coated Rotor (Part Number EBR1221EVC) is engineered for reliable braking performance on select BMW models. Designed with high carbon cast iron and a rust-resistant Geomet coating, this vented disc brake rotor offers durability and consistent stopping power for your BMW 550i GT, 750i, and 760Li vehicles.

• Constructed from high carbon cast iron for enhanced heat dissipation
• Rust-resistant Geomet coating to prevent corrosion and extend rotor life
• Vented rotor design improves cooling during braking
• Nominal thickness of 0.94 inches (23.80 mm) with discard thickness at 0.88 inches (22.40 mm)
• Overall height of 2.70 inches (69.00 mm) and outside diameter of 14.60 inches (370.00 mm)
• Mounting bolt hole circle diameter of 120.00 mm with 5 lug holes

Product Line Details: Power Stop - Rear Genuine Geomet High Carbon Coated Rotor

This rotor is part of the Power Stop - Rear Genuine Geomet High Carbon Coated Rotor line, which focuses on providing rotors with a high carbon content and a Geomet anti-corrosion coating. These rotors are designed to maintain structural integrity under high thermal stress while resisting rust, making them suitable for rear brake applications on performance-oriented vehicles like BMW. The vented design further aids in heat management to reduce brake fade during extended use.

Technical Description and Specifications

The EBR1221EVC rotor is manufactured from high carbon cast iron, which improves thermal conductivity and reduces the risk of warping under heavy braking. The Geomet coating offers a protective layer against rust and corrosion, which is critical for maintaining rotor surface quality over time. This rotor features a vented design, allowing air to flow between the rotor faces to dissipate heat more effectively. With a nominal thickness of 0.94 inches and a discard thickness of 0.88 inches, it provides a clear service life indicator. The rotor’s dimensions, including a 14.60-inch outside diameter and 2.70-inch overall height, are engineered to match the rear brake system requirements of compatible BMW models.

Compatible BMW Models and Applications

• BMW 550i GT and 550i GT xDrive
• BMW 750i and 750i xDrive
• BMW 750Li and 750Li xDrive
• BMW 760Li

This rotor is specifically designed for rear brake replacement on these BMW models, ensuring proper fitment and brake system performance.

Common Issues Addressed by This Rotor

• Brake rotor warping due to heat stress
• Corrosion and rust buildup on rotor surfaces
• Reduced braking efficiency from worn or thin rotors
• Brake fade during extended or aggressive driving
• Uneven brake pad wear caused by rotor surface irregularities

Installation Notes and Tips

When installing the Power Stop EBR1221EVC rotor, ensure the rotor surface is clean and free of any protective coatings or contaminants before mounting. Verify that the mounting bolt hole circle diameter of 120 mm and the 5 lug holes align correctly with the vehicle hub. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Always torque mounting bolts to manufacturer specifications and inspect the brake system for any additional wear or damage during installation.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The high carbon cast iron construction combined with the Geomet coating ensures durability and corrosion resistance. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.