Centric 121.34079 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.34079

The Centric C-TEK Standard Disc Brake Rotor 121.34079 is engineered for reliable braking performance on select BMW models. Designed specifically for BMW 130i, 330i, 330xi, and X1 vehicles, this vented disc brake rotor offers consistent stopping power and durability.

• Compatible with BMW 130i, 330i, 330xi, and X1 models
• Part number 121.34079 for precise identification
• Vented rotor design for improved heat dissipation
• Nominal thickness of 0.941 inches (23.9 mm) and discard thickness of 0.882 inches (22.4 mm)
• Overall height of 2.882 inches (73.2 mm) and outside diameter of 12.992 inches (330 mm)
• Floating disc mounting with straight vane style for efficient cooling
• 5 stud/lug holes with a 4.724 inch (120 mm) bolt circle diameter
• Smooth surface type for consistent pad contact

Detailed Product Description

The Centric C-TEK Standard Disc Brake Rotor 121.34079 is a vented rotor designed to maintain optimal braking performance under various driving conditions. Its vented construction allows for better heat dissipation compared to solid rotors, reducing the risk of brake fade during extended use. The rotor features a smooth surface type that ensures even brake pad wear and consistent friction. With a nominal thickness of 0.941 inches (23.9 mm) and a discard thickness of 0.882 inches (22.4 mm), this rotor meets OEM specifications for thickness tolerances, ensuring safe and effective braking. The overall height of 2.882 inches (73.2 mm) and outside diameter of 12.992 inches (330 mm) are designed to fit precisely on compatible BMW models. The floating disc mounting and straight vane style enhance cooling efficiency, contributing to longer rotor life and improved brake system performance.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors that meet or exceed OEM standards for fit, form, and function. This product line focuses on providing reliable, direct replacement rotors with consistent quality and performance. The 121.34079 rotor is part of this line, delivering dependable braking for BMW vehicles without additional features such as ABS tone rings or included bearings, making it suitable for standard brake system setups.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on BMW 130i, 330i, 330xi, and X1
• Resolves brake pulsation caused by uneven rotor surfaces
• Addresses reduced braking efficiency due to rotor thickness below discard limits
• Improves heat management to prevent brake fade during extended braking
• Restores proper rotor dimensions for safe and consistent braking performance

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 0.882 inches (22.4 mm)
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Use correct torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle’s brake system, noting that this rotor does not include ABS tone ring or bearings
• Inspect brake pads and hardware during rotor replacement for optimal system performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.34079 should be confirmed with the supplier or manufacturer, Centric typically offers coverage against defects in materials and workmanship. This rotor is engineered to provide consistent braking performance for BMW 130i, 330i, 330xi, and X1 models when installed and maintained according to manufacturer guidelines.