Centric 121.34118 Disc Brake Rotor - Front Left

Reliable Disc Brake Rotor for BMW X5 and X6

The Centric C-TEK Standard Disc Brake Rotor 121.34118 is engineered to meet the braking demands of BMW X5 and X6 models. Designed with precision, this vented rotor ensures consistent performance and durability under various driving conditions.

• Vented disc brake rotor with curved vane style for efficient heat dissipation
• Nominal thickness of 1.413 inches (35.900 mm) and discard thickness of 1.354 inches (34.400 mm)
• Overall height of 2.453 inches (62.300 mm) and outside diameter of 15.551 inches (395.000 mm)
• Floating disc mounting design with 5 lug holes, each 0.654 inches (16.600 mm) in diameter
• Smooth surface type without ABS tone ring included
• Center hole diameter of 2.953 inches (75.000 mm) and mounting bolt hole circle diameter of 4.724 inches (120.000 mm)
• Weight approximately 38 lbs (17.270 kgs)

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 fit, form, and function. This product line focuses on providing reliable braking performance with quality materials and precise manufacturing processes. The 121.34118 rotor is part of this line, delivering consistent braking for BMW X5 and X6 vehicles with a vented design that helps reduce heat buildup during operation.

Technical Details and Performance

This disc brake rotor features a vented design with curved vanes that promote effective airflow, helping to maintain optimal operating temperatures and reduce brake fade. The floating disc mounting allows for slight movement to accommodate thermal expansion and improve rotor longevity. With a smooth surface finish, this rotor is compatible with a wide range of brake pads and does not include an ABS tone ring. The precise dimensions, including a 15.551-inch outside diameter and 5 lug holes, ensure proper fitment on BMW X5 and X6 models.

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
• Improving heat dissipation to prevent brake fade during heavy use
• Restoring proper rotor dimensions for smooth braking and pad contact
• Ensuring compatibility with BMW X5 and X6 brake systems requiring vented rotors

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 1.354 inches (34.400 mm) to maintain safety and performance. Use proper torque specifications for the 5 lug bolts and confirm the center hole and mounting bolt hole circle diameters match the vehicle hub. This rotor does not include bearings or ABS tone rings, so reuse existing components if applicable.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Using this rotor ensures adherence to OEM fitment and functional requirements for BMW X5 and X6 vehicles.