Centric 121.34179 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for BMW and Mini Models

The Centric C-TEK Standard Disc Brake Rotor 121.34179 is engineered to meet the braking demands of select BMW and Mini vehicles. Designed with precision, this vented rotor ensures consistent performance and durability for models like the BMW 220i, 228i Gran Coupe, and Mini Cooper Countryman.

• Vented disc brake rotor with smooth surface for effective heat dissipation
• Overall diameter of 300 mm (11.811 inches) for precise fitment
• Nominal thickness of 20.000 mm (0.787 inches) with discard thickness at 18.400 mm (0.724 inches)
• Floating disc mounting design for improved rotor alignment
• Five stud/lug holes with 16.600 mm (0.654 inches) diameter for secure installation
• Compatible with BMW and Mini models including 220i, 228i xDrive Gran Coupe, Cooper Clubman, and X2

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for standard braking applications. This product line focuses on delivering reliable stopping power with rotors that feature vented designs to enhance cooling and reduce brake fade. The 121.34179 rotor is part of this line, providing a balance of performance and durability suitable for daily driving conditions on BMW and Mini vehicles.

Technical Specifications and Features

This Centric rotor features a vented vane style with 40 OEM vane count, promoting efficient heat dissipation during braking. The rotor’s overall height measures 50.600 mm (1.992 inches), and it includes a center hole diameter of 67.000 mm (2.638 inches) to ensure proper hub fitment. The mounting bolt hole circle diameter is 112.000 mm (4.409 inches), accommodating five lug holes for secure attachment. The rotor weighs approximately 12.35 lbs (5.58 kgs), balancing strength and weight for optimal vehicle dynamics. Note that this rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Eliminating noise and vibration from uneven rotor surfaces
• Improving heat management in braking systems prone to fade
• Ensuring proper fitment for BMW 220i, 228i Gran Coupe, Mini Cooper Countryman, and similar models

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is within nominal specifications (20.000 mm) and above discard thickness (18.400 mm) to maintain safety and performance. Use proper torque specifications for the five lug nuts to avoid rotor warping. This rotor features a floating disc mounting design, so confirm compatibility with your vehicle’s hub assembly. Bearings and ABS tone rings are not included and should be reused or replaced separately as needed.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms related to part number 121.34179.